Question

Help needed with virtual users / local relaying in postifx + dovecot

Asked by: Havin_it

Hello,

I've set up a simple mailserver on Gentoo Linux which uses the following components:

- fetchmail to receive from various POP3 accounts on the Internet
- dovecot-1.1_rc4 to deliver (using its own LDA and virtual users) and serve mail by IMAP
- postfix to route outgoing mail from the IMAP clients to my ISP's SMTP server (clients authenticate to postfix using dovecot-sasl; postfix uses cyrus-sasl to auth with the ISP server)

All is working well so far, but I want to make an addition. I want mail sent from one of the local accounts (whose "From:" address will be that of the external POP3 address) to one of the others (again, "to:" being the external address) to be routed directly back to LDA to the appropriate local mailbox instead of going out via the Internet and coming back.

My additional hope is that if I can make this work, I can also allow local daemons to send log/alert emails to one of these addresses.

I have had a stab at it, using the howto on dovecot's wiki, but with what I have currently, the emails I send are getting bounced with a "unknown user" message.

I've added the postfix and dovecot configs in the code-listing below. Hope it's clear enough; please let me know any other stuff you might need to see.

Hope somebody can help!

# section from /etc/postfix/main.cf
dovecot   unix  -       n       n       -       -       pipe
  flags=DRhu user=vmail:vmail argv=/usr/libexec/dovecot/deliver -f ${sender} -d ${recipient}
 
--------------------------
# /etc/postfix/main.cf
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = brazil
mydomain = localdomain
dovecot_destination_recipient_limit = 1
virtual_mailbox_domains = popaccount1.net, popaccount2.co.uk
virtual_transport = dovecot
virtual_mailbox_maps = hash:/etc/postfix/virtual
unknown_local_recipient_reject_code = 550
mynetworks = 192.168.2.0/28, 192.168.10.0/28, 127.0.0.0/8
relayhost = [post.demon.co.uk]
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/saslpass
smtp_sasl_security_options =
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
debug_peer_level = 2
debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
setgid_group = postdrop
html_directory = /usr/share/doc/postfix-2.5.1/html
manpage_directory = /usr/share/man
sample_directory = /etc/postfix
readme_directory = /usr/share/doc/postfix-2.5.1/readme
home_mailbox = .maildir/
 
# NB - pop3 domains changed for anonymity. 'brazil' is the machine's hostname but it has no FQDN.
 
--------------------------------------------
# /etc/dovecot/dovecot.conf
 
disable_plaintext_auth = no
log_path = /var/log/dovecot.log
info_log_path = /var/log/dovecot-info.log
ssl_disable = yes
ssl_cert_file = /etc/ssl/dovecot/server.pem
ssl_key_file = /etc/ssl/dovecot/server.key
mail_location = maildir:~/.maildir
dotlock_use_excl = yes
maildir_copy_with_hardlinks = yes
protocol imap {
}
protocol pop3 {
}
protocol managesieve {
  sieve=~/.dovecot.sieve
  sieve_storage=~/sieve
}
protocol lda {
  postmaster_address = postmaster@example.com
  mail_plugins = cmusieve
  mail_plugin_dir = /usr/lib/dovecot/lda
  sieve_global_path = /home/vmail/sieve
}
auth default {
  mechanisms = plain
  socket listen {
    master {
      path = /var/run/dovecot/auth-master
      mode = 0600
      user = vmail # User running deliver
    }
    client {
      path = /var/spool/postfix/private/auth
      mode = 0660
      user = postfix
      group = postfix
    }
  }
  passdb passwd-file {
    args = /etc/dovecot/passwd
  }
  userdb static {
    args = uid=vmail gid=vmail home=/home/vmail/%u
  }
  user = root
}
dict {
}
plugin {
}

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Asked On: 2008-04-03 at 08:38:44ID23293166
Tags: postfix
,; 2.5.1
Topics: Email Servers
,; Simple Mail Transfer Protocol (SMTP)
,; Linux
Participating Experts: 1
Points: 0
Comments: 14

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Answers

by: ahoffmannPosted on 2008-04-03 at 22:50:38ID: 21279310

AFAIK you need something like
virtual_maps = hash:/etc/postfix/virtual
beside (what you already have):
virtual_mailbox_maps = hash:/etc/postfix/virtual

by: Havin_itPosted on 2008-04-04 at 04:45:18ID: 21280591

Hi, thanks for the reply :)

I was using $virtual_alias_maps previously (this is the Postfix 2.5.* descendant of virtual_maps) but the problem with that was that it rewrote the headers and then tried to send the mail via the ISP server (which obviously didn't work).

What I currently have is better in that it knows the mail should be passed to LDA, but I think the problem is LDA doesn't receive the right information to pass it to the appropriate virtual mailbox.

The listing below shows the output when I try to send a message from one user to the other (including the bounce, which also fails) with my current config, plus below that is the contents of the file /etc/postfix/virtual.

# /var/log/mail.log
Apr  4 12:35:56 brazil postfix/smtpd[22615]: connect from localhost[127.0.0.1]
Apr  4 12:35:56 brazil postfix/smtpd[22615]: E18A7157646: client=localhost[127.0.0.1]
Apr  4 12:35:56 brazil postfix/cleanup[22618]: E18A7157646: message-id=<20080404123556.1vippexass4444cs@brazil>
Apr  4 12:35:57 brazil postfix/qmgr[22549]: E18A7157646: from=<me@popaccount1.net>, size=829, nrcpt=1 (queue active)
Apr  4 12:35:57 brazil postfix/smtpd[22615]: disconnect from localhost[127.0.0.1]
Apr  4 12:35:57 brazil postfix/pipe[22619]: E18A7157646: to=<metoo@popaccount2.co.uk>, relay=dovecot, delay=0.53, delays=0.25/0.17/0/0.12, dsn=5.1.1, status=bounced (user unknown)
Apr  4 12:35:57 brazil postfix/cleanup[22618]: 68EE01578E5: message-id=<20080404113557.68EE01578E5@brazil>
Apr  4 12:35:57 brazil postfix/qmgr[22549]: 68EE01578E5: from=<>, size=2464, nrcpt=1 (queue active)
Apr  4 12:35:57 brazil postfix/bounce[22621]: E18A7157646: sender non-delivery notification: 68EE01578E5
Apr  4 12:35:57 brazil postfix/qmgr[22549]: E18A7157646: removed
Apr  4 12:35:57 brazil postfix/pipe[22619]: 68EE01578E5: to=<me@popaccount1.net>, relay=dovecot, delay=0.24, delays=0.12/0/0/0.12, dsn=5.1.1, status=bounced (user unknown)
Apr  4 12:35:57 brazil postfix/qmgr[22549]: 68EE01578E5: removed
 
-------------------------------------------------
# /etc/postfix/virtual
 
@popaccount1.net    localbox1
@popaccount2.co.uk  localbox2

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by: ahoffmannPosted on 2008-04-04 at 05:09:11ID: 21280769

> to send the mail via the ISP server
does your ISP allow to use his MTA as anonymous (spam) gateway? I doubt.

by: Havin_itPosted on 2008-04-04 at 09:19:52ID: 21283256

ahoffmann, I'm not sure what your basis is for this statement.

In case something's not clear, let me explain what is currently happening with outgoing mail. There are multiple external mail accounts which my users fetch by POP3, and send outgoing mail that is "from" those accounts via postfix, which (as you should see from the configs posted above) authenticates with my ISP's SMTP server using the credentials they provided me. I am permitted to send mails with any "from" address I so choose, as long as I authenticate. There is nothing anonymous about it.

by: ahoffmannPosted on 2008-04-05 at 01:58:53ID: 21287502

> I am permitted to send mails with any "from" address ..
that's what my question was about when refering to
> send the mail via the ISP server (which obviously didn't work).

If your ISP allows to send mails with any from, then please post the error messages you get when you try to deliver mails to your ISP mail server.

by: Havin_itPosted on 2008-04-05 at 04:41:05ID: 21287808

Sorry, I may need to clarify that part also. Under that configuration (using $virtual_alias_maps) I had no problem sending mails to other recipients -- it was only the POP3 domains listed in the virtuals file that would fail, because their "To:" address was rewritten to e.g.

me@popaccount1.net --> localbox1@brazil.localdomain

...which obviously was meaningless to the ISP server. I'll post the full output if you think it'll help, but surely the current config (where at least postfix is trying to hand them to dovecot instead of the ISP server) is closer to being right.

by: ahoffmannPosted on 2008-04-05 at 05:49:12ID: 21287938

hmm, this sounds like you need to debug the process(es), we need hands on the system I guess
That's not possible with EE.

by: Havin_itPosted on 2008-04-05 at 06:30:28ID: 21288105

No need to be so defeatist ;) I can follow instructions well enough, so if someone can advise what else to spy on to get better debug info, I'll do it.

If you mean binary debugging, I don't think there is anything like that happening; nothing has segfaulted or puked in the tell-tale ways. I'm sure it is just misconfiguration -- I can even offer a couple of theories, though I hope I can express them well enough to be useful:

1) The "To" address that postfix is putting on the mail (or possibly leaving intact, as the output above might suggest) cannot be translated by dovecot LDA into the correct mailbox to deliver it to. I guess this would mean that either my /etc/postfix/virtuals is wrong, or the dovecot transport definition in master.cf (shown in the first post) needs changing.

...or...

2) Something is wrong with the SASL auth process. I don't think this is likely, as the mail does at least get *into* postfix, and appears to attempt to deliver, which I don't think it would get that far if SASL wasn't working. And it definitely works OK for sending to non-virtual domains using the same client(s).

Hopefully these thoughts might help to steer the quest in the right direction. I will have a look at the program docs and see if I can find a way of getting more debug output.

by: ahoffmannPosted on 2008-04-05 at 07:46:41ID: 21288313

> If you mean binary debugging,
no, I mean you need to carefully watch the logfiles with debug inabled in main.cf when when you deliver your messages with the old and with the new configuration, so you can see where exactly the problem occours.

by: Havin_itPosted on 2008-04-05 at 09:42:35ID: 21288722

Okay, I added the following to main.cf

debug_peer_level = 9 #I've no idea how high I can set this, what is the max value?
debug_peer_list = 127.0.0.1

I'm still unsure if I can get more logging from dovecot -- I haven't posted any because the output doesn't say anything specific about the attempts that are failing. Any idea about this?

by: Havin_itPosted on 2008-04-06 at 04:46:39ID: 21291477

Okay, here's a log that (I think) covers both the initial send and the bounce. It doesn't mean much to me, but I do see that the sending address (metoo@popaccount2.co.uk) does get resolved to the mailbox (localbox2), so that bit does seem to work. Okay, over to those who have some clue what all this means ;)

Apr  6 12:22:22 brazil postfix/smtpd[10439]: connect from localhost[127.0.0.1]
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 192.168.2.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 192.168.2.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 192.168.10.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 192.168.10.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 127.0.0.0/8
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 220 brazil ESMTP Postfix
Apr  6 12:22:22 brazil postfix/smtpd[10439]: watchdog_pat: 0x80be508
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 26
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 11 got 16
Apr  6 12:22:22 brazil postfix/smtpd[10439]: < localhost[127.0.0.1]: EHLO localhost
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-brazil
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-PIPELINING
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-SIZE 10240000
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-VRFY
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-ETRN
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_list_match: localhost: no match
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_list_match: 127.0.0.1: no match
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-AUTH PLAIN
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-ENHANCEDSTATUSCODES
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250-8BITMIME
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250 DSN
Apr  6 12:22:22 brazil postfix/smtpd[10439]: watchdog_pat: 0x80be508
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 131
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 11 got 34
Apr  6 12:22:22 brazil postfix/smtpd[10439]: < localhost[127.0.0.1]: MAIL FROM:<me@popaccount1.net>
Apr  6 12:22:22 brazil postfix/smtpd[10439]: extract_addr: input: <me@popaccount1.net>
Apr  6 12:22:22 brazil postfix/smtpd[10439]: smtpd_check_addr: addr=me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: connect to subsystem private/rewrite
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_enable_read: fd 18
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_extend: fd 18
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_request_timer: set 0x80775d0 0x80c29f0 5
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_request_timer: set 0x8077600 0x80c29f0 1000
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr request = rewrite
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr rule = local
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr address = me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 18 flush 57
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 18 got 38
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 0
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: address
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: address
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rewrite_clnt: local: me@popaccount1.net -> me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_request_timer: reset 0x80775d0 0x80c29f0 5
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr request = resolve
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr sender =
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr address = me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 18 flush 54
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 18 got 92
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 0
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: transport
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: transport
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: dovecot
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: nexthop
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: nexthop
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: recipient
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: recipient
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 1024
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: resolve_clnt: `' -> `me@popaccount1.net' -> transp=`dovecot' host=`popaccount1.net' rcpt=`me@popaccount1.net' flags= class=virtual
Apr  6 12:22:22 brazil postfix/smtpd[10439]: ctable_locate: install entry key me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: extract_addr: in: <me@popaccount1.net>, result: me@popaccount1.net
Apr  6 12:22:22 brazil postfix/smtpd[10439]: fsspace: .: block size 4096, blocks free 71918
Apr  6 12:22:22 brazil postfix/smtpd[10439]: smtpd_check_queue: blocks 4096 avail 71918 min_free 0 msg_size_limit 10240000
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250 2.1.0 Ok
Apr  6 12:22:22 brazil postfix/smtpd[10439]: watchdog_pat: 0x80be508
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 14
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 11 got 31
Apr  6 12:22:22 brazil postfix/smtpd[10439]: < localhost[127.0.0.1]: RCPT TO:<metoo@popaccount2.co.uk>
Apr  6 12:22:22 brazil postfix/smtpd[10439]: extract_addr: input: <metoo@popaccount2.co.uk>
Apr  6 12:22:22 brazil postfix/smtpd[10439]: smtpd_check_addr: addr=metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_request_timer: reset 0x80775d0 0x80c29f0 5
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr request = rewrite
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr rule = local
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr address = metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 18 flush 56
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 18 got 37
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 0
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: address
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: address
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rewrite_clnt: local: metoo@popaccount2.co.uk -> metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_request_timer: reset 0x80775d0 0x80c29f0 5
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr request = resolve
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr sender =
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr address = metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 18 flush 53
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 18 got 92
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 0
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: transport
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: transport
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: dovecot
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: nexthop
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: nexthop
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: recipient
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: recipient
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 1024
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: resolve_clnt: `' -> `metoo@popaccount2.co.uk' -> transp=`dovecot' host=`popaccount2.co.uk' rcpt=`metoo@popaccount2.co.uk' flags= class=virtual
Apr  6 12:22:22 brazil postfix/smtpd[10439]: ctable_locate: install entry key metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: extract_addr: in: <metoo@popaccount2.co.uk>, result: metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: event_request_timer: reset 0x80775d0 0x80c29f0 5
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr request = rewrite
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr rule = local
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr address = double-bounce
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 18 flush 50
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 18 got 50
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: flags
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 0
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: address
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: address
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: double-bounce@brazil.localdomain
Apr  6 12:22:22 brazil postfix/smtpd[10439]: private/rewrite socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rewrite_clnt: local: double-bounce -> double-bounce@brazil.localdomain
Apr  6 12:22:22 brazil postfix/smtpd[10439]: >>> START Recipient address RESTRICTIONS <<<
Apr  6 12:22:22 brazil postfix/smtpd[10439]: generic_checks: name=permit_mynetworks
Apr  6 12:22:22 brazil postfix/smtpd[10439]: permit_mynetworks: localhost 127.0.0.1
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 192.168.2.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 192.168.2.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 192.168.10.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 192.168.10.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 127.0.0.0/8
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Apr  6 12:22:22 brazil postfix/smtpd[10439]: generic_checks: name=permit_mynetworks status=1
Apr  6 12:22:22 brazil postfix/smtpd[10439]: >>> CHECKING RECIPIENT MAPS <<<
Apr  6 12:22:22 brazil postfix/smtpd[10439]: ctable_locate: leave existing entry key metoo@popaccount2.co.uk
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: recipient_canonical_maps: metoo@popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? brazil
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost.localdomain
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_list_match: popaccount2.co.uk: no match
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: recipient_canonical_maps: @popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: mail_addr_find: metoo@popaccount2.co.uk -> (not found)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: canonical_maps: metoo@popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? brazil
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost.localdomain
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_list_match: popaccount2.co.uk: no match
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: canonical_maps: @popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: mail_addr_find: metoo@popaccount2.co.uk -> (not found)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: virtual_alias_maps: metoo@popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? brazil
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost.localdomain
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_list_match: popaccount2.co.uk: no match
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: virtual_alias_maps: @popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: mail_addr_find: metoo@popaccount2.co.uk -> (not found)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: virtual_mailbox_maps: metoo@popaccount2.co.uk: not found
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? brazil
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost.localdomain
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_string: popaccount2.co.uk ~? localhost
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_list_match: popaccount2.co.uk: no match
Apr  6 12:22:22 brazil postfix/smtpd[10439]: maps_find: virtual_mailbox_maps: hash:/etc/postfix/virtual(0,lock|fold_fix): @popaccount2.co.uk = localbox2
Apr  6 12:22:22 brazil postfix/smtpd[10439]: mail_addr_find: metoo@popaccount2.co.uk -> localbox2
Apr  6 12:22:22 brazil postfix/smtpd[10439]: smtpd_check_rewrite: trying: permit_inet_interfaces
Apr  6 12:22:22 brazil postfix/smtpd[10439]: permit_inet_interfaces: localhost 127.0.0.1
Apr  6 12:22:22 brazil postfix/smtpd[10439]: before input_transp_cleanup: cleanup flags = enable_header_body_filter enable_automatic_bcc enable_address_mapping enable_milters
Apr  6 12:22:22 brazil postfix/smtpd[10439]: after input_transp_cleanup: cleanup flags = enable_header_body_filter enable_automatic_bcc enable_address_mapping
Apr  6 12:22:22 brazil postfix/smtpd[10439]: connect to subsystem public/cleanup
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 19 got 22
Apr  6 12:22:22 brazil postfix/smtpd[10439]: public/cleanup socket: wanted attribute: queue_id
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: queue_id
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: B0A131575BE
Apr  6 12:22:22 brazil postfix/smtpd[10439]: public/cleanup socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: send attr flags = 178
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type T len 17 data 1207480942
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 21 data rewrite_co
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type S len 20 data me@popacco
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 25 data log_client
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 28 data log_client
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 21 data log_client
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 39 data log_messag
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 23 data log_helo_n
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 23 data log_protoc
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 21 data client_nam
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 29 data reverse_cl
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 24 data client_add
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 17 data client_por
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 19 data helo_name=
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 21 data client_add
Apr  6 12:22:22 brazil postfix/smtpd[10439]: B0A131575BE: client=localhost[127.0.0.1]
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type A len 40 data dsn_orig_r
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type R len 19 data metoo@popa
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 19 flush 452
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250 2.1.5 Ok
Apr  6 12:22:22 brazil postfix/smtpd[10439]: watchdog_pat: 0x80be508
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 14
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 11 got 6
Apr  6 12:22:22 brazil postfix/smtpd[10439]: < localhost[127.0.0.1]: DATA
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type M len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 48 data Received:
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 46 data ?by brazil
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 65 data ?for <metoo
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 354 End data with <CR><LF>.<CR><LF>
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 37
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 11 got 673
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 73 data Received:
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 43 data ?with HTTP
Apr  6 12:22:22 brazil postfix/cleanup[10442]: B0A131575BE: message-id=<20080406122222.cmk8lczbzwcg8c8c@brazil>
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 52 data Message-ID
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 37 data Date: Sun,
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 43 data From: Robi
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 23 data To: metoo@
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 13 data Subject: T
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 17 data MIME-Versi
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 25 data Content-Ty
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 20 data ?charset=I
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 13 data ?DelSp="Ye
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 16 data ?format="f
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 27 data Content-Di
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 31 data Content-Tr
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 55 data User-Agent
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 10 data Testing :(
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 64 data ----------
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 64 data This messa
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type N len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type X len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: rec_put: type E len 0 data
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 19 flush 841
Apr  6 12:22:22 brazil postfix/qmgr[3195]: B0A131575BE: from=<me@popaccount1.net>, size=835, nrcpt=1 (queue active)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 19 got 18
Apr  6 12:22:22 brazil postfix/smtpd[10439]: public/cleanup socket: wanted attribute: status
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: status
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: 0
Apr  6 12:22:22 brazil postfix/smtpd[10439]: public/cleanup socket: wanted attribute: reason
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: reason
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute value: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: public/cleanup socket: wanted attribute: (list terminator)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: input attribute name: (end)
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 250 2.0.0 Ok: queued as B0A131575BE
Apr  6 12:22:22 brazil postfix/smtpd[10439]: watchdog_pat: 0x80be508
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 37
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_buf_get_ready: fd 11 got 6
Apr  6 12:22:22 brazil postfix/smtpd[10439]: < localhost[127.0.0.1]: QUIT
Apr  6 12:22:22 brazil postfix/smtpd[10439]: > localhost[127.0.0.1]: 221 2.0.0 Bye
Apr  6 12:22:22 brazil postfix/smtpd[10439]: vstream_fflush_some: fd 11 flush 15
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 192.168.2.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 192.168.2.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 192.168.10.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 192.168.10.0/28
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostname: localhost ~? 127.0.0.0/8
Apr  6 12:22:22 brazil postfix/smtpd[10439]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Apr  6 12:22:22 brazil postfix/smtpd[10439]: disconnect from localhost[127.0.0.1]
Apr  6 12:22:23 brazil postfix/pipe[10444]: B0A131575BE: to=<metoo@popaccount2.co.uk>, relay=dovecot, delay=0.67, delays=0.33/0.09/0/0.25, dsn=5.1.1, status=bounced (user unknown)
Apr  6 12:22:23 brazil postfix/cleanup[10442]: 423091578E4: message-id=<20080406112223.423091578E4@brazil>
Apr  6 12:22:23 brazil postfix/qmgr[3195]: 423091578E4: from=<>, size=2470, nrcpt=1 (queue active)
Apr  6 12:22:23 brazil postfix/qmgr[3195]: B0A131575BE: removed
Apr  6 12:22:23 brazil postfix/bounce[10446]: B0A131575BE: sender non-delivery notification: 423091578E4
Apr  6 12:22:23 brazil postfix/pipe[10444]: 423091578E4: to=<me@popaccount1.net>, relay=dovecot, delay=0.37, delays=0.09/0/0/0.28, dsn=5.1.1, status=bounced (user unknown)
Apr  6 12:22:23 brazil postfix/qmgr[3195]: 423091578E4: removed

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by: Havin_itPosted on 2008-04-06 at 06:02:09ID: 21291635

While I wait for enlightenment on the above, I've done a simple test to try and narrow down the problem. I edited master.cf and replaced the dovecot argument

-d ${recipient}

with

-d localbox2

And this time, the mail got through! So, progress. Now we know that it's this argument that is wrong, so we need to get postfix to make the right one. It looks like it can already resolve the pop3 address to the mailbox name, but that isn't what we're getting in the ${recipient} variable.

The problem is, I don't know how to spy on what is in that variable (dovecot doesn't log the failed delivery attempts at all and there doesn't seem to be a way to make it), and I can't find a sausage about the variables in the master(5) or postconf(5) manpages.

by: Havin_itPosted on 2008-04-06 at 08:46:02ID: 21292148

Right. More facts I have established:

1) $virtual_mailbox_maps file lookups *ignore* what is on the right-hand side (which for me is the name of the corresponding mailbox: the info I need to get!). I think this means that the address isn't rewritten at all, which is no good to me.

2) http://www.postfix.org/ADDRESS_CLASS_README.html#virtual_alias_class
"Purpose: hosted domains where each recipient address is aliased to a local UNIX system account or to a remote address."
This would, I guess, be why when I add $virtual_alias_domains and $virtual_alias_maps configuration directives, the messages get sent to the ISP server.

I think the current configuration may be a dead end. $virtual_mailbox_maps won't allow me (well, not that I can tell) to pass the correct mailbox name to LDA, so I need to see if I can come up with an alternative approach.

Is there a way I can use the transport table and $mydestination to get the desired result, perhaps?

by: Havin_itPosted on 2008-04-07 at 13:32:15ID: 21300311

Yay, I finally (after a sleepless night) solved it! This is arguably a bit hackish, but it does work so never mind ;)

First, I removed the virtual_* directives from /etc/postfix/main.cf. Then I added the directives below (see listing) and changed the dovecot transport definition in the master.cf file. Lastly I created the /etc/postfix/transport table, as shown.

Basically, the empty local_recipient_maps variable means that local usernames (which do not exist on my system in any sense that postfix can employ) are not checked, somails will not be rejected when sent to the domains I've listed in $mydestination. Instead, when those domains are looked-up in the transport table, they're instructed to use the dovecot transport. The part after the colon in the table is called the 'nexthop', and this is available as a variable to put as the -d argument in master.cf, so I use it to declare the name of the target mailbox.

I'm not even that clear on the intended definition of 'nexthop', so I don't know how semantically appropriate it is -- but as I said, it works so who cares?

NB -- using the blank local_recipient_maps declaration is something that should only *ever* be done on a server that isn't exposed to the Internet. Otherwise it will be a backscatter source.

# added variables in /etc/postfix/main.cf
mydestination = $myhostname, brazil.$mydomain, localhost.$mydomain, localhost,
        popaccount1.net, popaccount2.co.uk
 
transport_maps = hash:/etc/postfix/transport
local_recipient_maps =
 
---------------------------------------------
# dovecot transport definition in /etc/postfix/master.cf
dovecot   unix  -       n       n       -       -       pipe
  flags=DRhu user=vmail:vmail argv=/usr/libexec/dovecot/deliver -f ${sender} -d ${nexthop}
 
-----------------------------------------------
# /etc/postfix/transport
popaccount1.net      dovecot:localbox1
popaccount2.co.uk    dovecot:localbox2
localhost            dovecot:localbox1

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20120131-EE-VQP-002

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Help needed with virtual users / local relaying in postifx + dovecot

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