[SOLVED] POP/SMTP Zimbra Installation

[yacahuma]

I encounter the same problem specified in the install. I have to use mydomain.com instead of mail.mydomain.com since otherwise it complaint.


I just want to mention it in case this is causing the receiving email problem.

[dwmtractor]

Sounds to me like your router isn't sending port 25 traffic to the Zimbra server on the DMZ. Remember that since the server is on a DMZ, by definition it doesn't have an IP address from your public IP range. Yet this is the only range the "outside world" knows how to talk to. Your firewall/router needs to a DNAT (Destination Network Address Translation) for whatever the public IP address of your mailserver is (the one I'd get by doing an mxlookup or nslookup of your domain from my network). DNAT has to translate port 25 traffic from the world from that public address to the private DMZ address of your server. Then mail should get through.

[yacahuma]

doesnt the telnet test probes that port 25 is OK??

I did a telnet mail.mydomain.com 25 and I got a zimbra prompt

[dwmtractor]

Originally Posted by yacahuma

doesnt the telnet test probes that port 25 is OK??

I did a telnet mail.mydomain.com 25 and I got a zimbra prompt

Did you do it from outside your firewall, though? Remember permissions for your LAN are going to be different than permissions for those of us outside the firewall. Telnetting from your LAN pc could work even when others don't for two reasons:

1) Because of split DNS your PC on the LAN is resolving mail.mydomain.com to the internal DMZ address

2) Your firewall rules may route even from the public IP differently if the request is coming from inside vs. outside.

[yacahuma]

The problema weas that the domain I was using was once defined in another server and I was sending email from another domain on the same server. Now that the domain was propagated , I am abnle to send email just fine.


YES, YES, YES, finally cool


Thanks for all the help

[dwmtractor]

Those DNS will get you every time!

Glad it's working; John/Mike, this can be marked solved.

[mmorse]

Would be happy to do so!

That means you can still reply to this thread, it just let's us know the original problem was resolved - but do open a new thread if you have an unrelated issue/question (you'll get faster help that way)

[bhwong]

Zimbra can't send email after I install postfix mail server thru webmin. Could this conflict with Zimbra? And how do I uninstall it?

Also, the fetchmail program is not available under the server folder. It was listed at the un-used module with the following message:

fetchmail could not be found. Maybe fetchmail is not installed on your system, or your module configuration is incorrect.

How come? Please help.

[phoenix]

Originally Posted by bhwong

Zimbra can't send email after I install postfix mail server thru webmin. Could this conflict with Zimbra? And how do I uninstall it?

Also, the fetchmail program is not available under the server folder. It was listed at the un-used module with the following message:

fetchmail could not be found. Maybe fetchmail is not installed on your system, or your module configuration is incorrect.

How come? Please help.

You can not have another MTA running on your server, stop the currently running MTA and then disable it from starting at boot.

[bhwong]

I restart zimbra and it solved the problem. I'm new to Linux so I'm not familiar with how to remove the new MTA from boot or even uninstall it.