Question

Cannot connect to Fedora 10 PostFix from Windows Mail or Telnet

Asked by: KANEWONG

I installed a PostFix on Fedora 10, it works fine if I am using Telnet on the server host but if I tried to use telnet from Putty on my laptop and using windows mail on my Vista, it is not able to make connection to Fedora's PostFix SMTP.

I just want to use it for internal therefore it can be open relay, that's why I set "relay_domains=" in main.cf file.

I have turned off the iptables, therefore the firewall isn't running at this time.  What else cause the problem?

I posted my main.cf content at the "code" section for reference.  In order to shorten the main.cf, I remove the comment line.

queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = kfax.home.local
mydomain = home.local
inet_interfaces = localhost
mydestination = $myhostname, localhost.$mydomain, localhost
 
unknown_local_recipient_reject_code = 550
mynetworks = 192.168.0.0/24, 127.0.0.0/8
relayhost =
relay_domains =
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
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.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.5.6/samples
readme_directory = /usr/share/doc/postfix-2.5.6/README_FILES
inet_protocols = all
 
virtual_alias_maps = hash:/etc/postfix/valias

                                  
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Asked On
2009-10-19 at 15:31:00ID24825327
Topics

Fedora Linux

,

Postfix

Participating Experts
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Comments
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Answers

 

by: keymalusPosted on 2009-10-19 at 15:48:39ID: 25609653

Hello,

I would try change

inet_interfaces = localhost
to
inet_interfaces = all

That should then allow you to use SMTP on your laptop.

Thanks,

Trev

 

by: KANEWONGPosted on 2009-10-19 at 15:55:34ID: 25609696

Changed but no help.  I will try to uninstall the Firewall software from my installation to see how it work.

 

by: KANEWONGPosted on 2009-10-19 at 16:13:10ID: 25609775

It looks like the conflict is from SELinux program on Fedora installation.  Because I saw some message there, how can I stop the SELinux for further test.

 

by: KANEWONGPosted on 2009-10-19 at 16:31:05ID: 25609856

I figure it out.  It is really blocked by SeLinux, after I disable it, I can telnet my Fedora's PostFix from my Putty and using Windows Mail.  I followed the steps listed here to stop SELinux http://www.thegeekstuff.com/2009/06/how-to-disable-selinux-redhat-fedora-debian-unix/#more-518

Method 1: Disable SELinux Temporarily
# cat /selinux/enforce
1
# echo 0 > /selinux/enforce

# cat /selinux/enforce
0

Method 2: Disable SELinux Permanently
# cat /etc/selinux/config
SELINUX=disabled
SELINUXTYPE=targeted
SETLOCALDEFS=0

Method 3: Disable SELinux from the Grub Boot Loader
# cat /boot/grub/grub.conf
default=0
timeout=5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title Enterprise Linux Enterprise Linux Server (2.6.18-92.el5PAE)
root (hd0,0)
kernel /boot/vmlinuz-2.6.18-92.el5PAE ro root=LABEL=/ rhgb quiet selinux=0
initrd /boot/initrd-2.6.18-92.el5PAE.img
title Enterprise Linux Enterprise Linux Server (2.6.18-92.el5)
root (hd0,0)
kernel /boot/vmlinuz-2.6.18-92.el5 ro root=LABEL=/ rhgb quiet selinux=0
initrd /boot/initrd-2.6.18-92.el5.img

20120131-EE-VQP-002

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