Weird Issue with my zimbra servers

[abhiz]

Hi all,

I have 2 zimbra server in same network and i have 2 different domains running on the two server ,when I try to send emails in between my 2 server it gets deferred,and in logs I got

Jul 14 21:41:22 mail postfix/smtp[60704]: 0D1C6A1056: to=<aamralkar@xyz.com>, relay=none, delay=61, delays=0.01/0.03/61/0, dsn=4.4.1, status=deferred (connect to mail.xyz.com[a.b.c.d]:25: Operation timed out)

it will be very helpfull if I get some solution for this issue.

[phoenix]

Originally Posted by abhiz

Hi all,

I have 2 zimbra server in same network and i have 2 different domains running on the two server ,when I try to send emails in between my 2 server it gets deferred,and in logs I got

Jul 14 21:41:22 mail postfix/smtp[60704]: 0D1C6A1056: to=<aamralkar@xyz.com>, relay=none, delay=61, delays=0.01/0.03/61/0, dsn=4.4.1, status=deferred (connect to mail.xyz.com[a.b.c.d]:25: Operation timed out)

it will be very helpfull if I get some solution for this issue.

Surely the error reason is highlighted above, have you investigated connection problems ofn the servers? You need to provide full details from the log files not just one line, you also need to show that you can connect to the server (via telnet, for example), you need to describe whether this is a new problem or has happened before (and for how long).

[abhiz]

what i found is that when I try to telnet my servers on SMTP port with Public IP it doesnt get connected and when i try to telnet from my private IP on smtp port it gets connected.


Jul 15 11:42:17 corp postfix/smtp[21986]: DA0754E00F: to=<abhishek@xyz.com>, relay=none, delay=31, delays=0.01/0/31/0, dsn=4.4.1, status=deferred (connect to mail.xyz.com[209.8.43.149]: Connection timed out)
Jul 15 11:42:30 corp postfix/smtp[18922]: 3A2C84E00D: to=<abhishek@xyz.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.27, delays=0.04/0.02/0/0.21, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 715734E010)
Jul 15 11:43:00 corp postfix/smtp[22235]: 715734E010: to=<abhishek@xyz.com>, relay=none, delay=30, delays=0.03/0/30/0, dsn=4.4.1, status=deferred (connect to mail.xyz.com[a.b.c.d]: Connection timed out)

[phoenix]

Originally Posted by abhiz

what i found is that when I try to telnet my servers on SMTP port with Public IP it doesnt get connected and when i try to telnet from my private IP on smtp port it gets connected.

If you do that behind a NAT router then that's hardly surprising and what I would expect, use the LAN IP of your server.

[abhiz]

Please explain that I didnt got what you are trying to say.where do i need to use my LAN IP..

[abhiz]

My servers are behind cisco firewall and we are using private IP for our servers ,we are using NAT to assign public IP to servers.

[phoenix]

Originally Posted by abhiz

Please explain that I didnt got what you are trying to say.where do i need to use my LAN IP..

I thought I'd already answered that in my reply, use the LAN IP.

[phoenix]

Originally Posted by abhiz

My servers are behind cisco firewall and we are using private IP for our servers ,we are using NAT to assign public IP to servers.

I doubt that very much, you are probably forwarding ports on your public IP through the NAT routers to your LAN IP.

[abhiz]

Where do I need to use my LAN IP ...?

[phoenix]

Originally Posted by abhiz

Where do I need to use my LAN IP ...?

I've already answered this question, if you are behind the NAT router then use the LAN IP.