BCRobert
asked on
Configure Postfix as outgoing server only
I have postfix configured on a CentOS server as a simple outgoing-server only. There are no local users, mailboxes or IMAP/POP access. It's simply used to send out bulk email (>2000) by some of our users. However, it seems to fail to deliver any bounced/failed-to-deliver email.
The code includes a snippet from /var/log/maillog.
I'm not sure how to configure postfix to send the mail back to the user.
The code includes a snippet from /var/log/maillog.
I'm not sure how to configure postfix to send the mail back to the user.
May 5 15:54:33 mail2 postfix/qmgr[26827]: 629542F00B0: from=<user@mycompany.com>, size=10025, nrcpt=1 (queue active)
May 5 15:54:36 mail2 postfix/smtpd[26846]: disconnect from unknown[10.1.2.141]
May 5 15:54:36 mail2 postfix/smtp[26849]: 629542F00B0: to=<lksjdflsjdfoeifuiwheiufhief@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.67.27]:25, delay=3.4, delays=0.11/0.01/0.23/3.1, dsn=5.1.1, status=bounced (host gmail-smtp-in.l.google.com[74.125.67.27] said: 550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. Learn more at 550 5.1.1 http://mail.google.com/support/bin/answer.py?answer=6596 x72si6979 (in reply to RCPT TO command))
May 5 15:54:36 mail2 postfix/cleanup[26848]: D0D5F2F00BF: message-id=<20110505195436.D0D5F2F00BF@mail2.mycompany.com>
May 5 15:54:36 mail2 postfix/bounce[26850]: 629542F00B0: sender non-delivery notification: D0D5F2F00BF
May 5 15:54:36 mail2 postfix/qmgr[26827]: D0D5F2F00BF: from=<>, size=12587, nrcpt=1 (queue active)
May 5 15:54:36 mail2 postfix/qmgr[26827]: 629542F00B0: removed
May 5 15:54:39 mail2 postfix/smtp[26849]: connect to mycompany.com[10.1.2.6]: No route to host (port 25)
May 5 15:54:39 mail2 postfix/smtp[26849]: D0D5F2F00BF: to=<user@mycompany.com>, relay=mycompany.com[10.1.2.111]:25, delay=3.1, delays=0.03/0/3/0.08, dsn=5.7.1, status=bounced (host mycompany.com[10.1.2.111] said: 550 5.7.1 Unable to relay for user@mycompany.com (in reply to RCPT TO command))
May 5 15:54:39 mail2 postfix/qmgr[26827]: D0D5F2F00BF: removed
To add for what Wesly said
You need to allow it on your firewall.
create a script and add
iptables -A INPUT -p tcp -s 0/0 --sport 25 --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -p tcp -s 0/0 --sport 25 --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT
You need to allow it on your firewall.
create a script and add
iptables -A INPUT -p tcp -s 0/0 --sport 25 --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -p tcp -s 0/0 --sport 25 --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT
ASKER
10.1.2.6 doesn't even exist anymore. It's an old DC that's gone, so I'm not sure where it's getting that IP from. This is connected to a Windows domain network. I didn't do the initial setup, so I'm not 100% familiar with how the DNS is configured, but it seems to have records to old servers still in there.
Gateway: 10.1.1.1
DNS1: 10.1.2.9
DNS2: 10.1.2.111
Gateway: 10.1.1.1
DNS1: 10.1.2.9
DNS2: 10.1.2.111
ASKER
It also appears that mail sent to people inside the domain also get bounced back as it can't find a proper relay host.
Hi, I will be on vacation for 10 days start 6/17/2011. Please click "Request Attention" if you need help during my absent. Other experts will assist you.
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ASKER
Not an answer, since I've abandoned this project/question.
10.1.2.6 port 25 being blocked outbound.