SMTP problem

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16227yk11
Posts: 2
Joined: Fri Sep 12, 2014 11:18 pm

SMTP problem

Postby 16227yk11 » Tue Jan 22, 2008 8:47 pm

I've been struggling with what seems like an SMTP problem for a few days now (I'm stubborn that way and like to resolve things myself...), but now am turning to you for help (finally came to my senses).
I am running a single server Zimbra install on Ubuntu 6.06 LTS server (non-LAMP install) within VMWare on Windows XP host. The install and configuration went fine after reading a few guides on various sites, including the Zimbra forums (see http://www.howtoforge.com/installing_zimbra_collaboration_suite_on_ubuntu"] here for main install and here for split DNS config using bind9).
Overall, the install went well. I can send email between users on the server, but not send/receive externally. All messages end up as deferred due to connection time-outs.
I have tried several things, including several uninstall/install cycles, but to no avail. I also verified that the A and MX records are correct, etc.
I believe the problem is in the SMTP setup, as there in no response from external telnet session into the server on port 25 (internally it's fine).
I tried the various diagnostic methods found on the wiki and other places, but don't seem to be able to identify the specific problem.
Here is what's in the /var/log/zimbra.log file:

Jan 22 00:40:39 mail postfix/qmgr[19792]: 0343CCB587: from=, size=1143, nrcpt=1 (queue active)

Jan 22 00:41:09 mail postfix/smtp[19795]: connect to krauze.net[65.254.40.226]: Connection timed out (port 25)

Jan 22 00:41:09 mail postfix/smtp[19795]: 0343CCB587: to=, relay=none, delay=269, delays=239/0.08/30/0, dsn=4.4.1, status=deferred (connect to krauze.net[65.254.40.226]: Connection timed out)


I'm hoping you can help me...
Thanks.


uscell
Advanced member
Advanced member
Posts: 64
Joined: Fri Sep 12, 2014 11:12 pm

SMTP problem

Postby uscell » Wed Jan 23, 2008 5:43 am

Hello,
Check firewall settings and if possibel disable firewall and try telnet

your question indicate that bind is not properly installed please check A record and restart bind

try this command " nslookup it must return your internal address which actually configured with your Lan card.
Thanks,

Yukari !!!
bdial
Elite member
Elite member
Posts: 1633
Joined: Fri Sep 12, 2014 10:39 pm

SMTP problem

Postby bdial » Wed Jan 23, 2008 6:50 am

in opensuse there is a sysconfig option SMTPD_LISTEN_REMOTE that is set to no by default. this makes it so the smtp server only listens to hosts on it's network or maybe localhost i can't remember. that bit me in the rear a few times. maybe there is something like this in ubuntu as well?
16227yk11
Posts: 2
Joined: Fri Sep 12, 2014 11:18 pm

SMTP problem

Postby 16227yk11 » Wed Jan 23, 2008 6:49 pm

[quote user="uscell"]Hello,
Check firewall settings and if possibel disable firewall and try telnet

your question indicate that bind is not properly installed please check A record and restart bind

try this command " nslookup it must return your internal address which actually configured with your Lan card.
Thanks,

Yukari !!![/QUOTE]
I have verified that it's all ok, yet SMTP doesn't work...
yair@mail:~$ nslookup yairkrauze.com

Server: 192.168.0.11

Address: 192.168.0.11#53
Name: yairkrauze.com

Address: 192.168.0.11
root@mail:~# host -t mx yairkrauze.com

yairkrauze.com mail is handled by 10 mail.yairkrauze.com.

root@mail:~# host -t a mail.yairkrauze.com

mail.yairkrauze.com has address 192.168.0.11


It looks like my ISP is blocking port 25. I'll have to find a work-around.

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