Double respone with code 220 from smtp

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Double respone with code 220 from smtp

Postby prizes » Fri Nov 19, 2021 10:59 am

Hello everyone.

I am serving 2 Zimbra mail servers on Ubuntu.
Both have a 220 double response issue on smtp session.
A colleague using Zimbra on CentOS has no such problem.

What is the reason?

Image

I can’t repeat it myself via telnet

Some testers think that I have open relay, but this is not the case and this can be seen in WireShark
Last edited by prizes on Thu Dec 02, 2021 5:36 am, edited 1 time in total.


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L. Mark Stone
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Re: Double respone with code 220 from smtp

Postby L. Mark Stone » Fri Nov 19, 2021 2:37 pm

We really need to see unobfuscated log file snippets detailing the error, and the output of zmcontrol -v to be able to help.

All the best,
Mark
___________________________________
L. Mark Stone
Mission Critical Email - Zimbra VAR/BSP/Training Partner https://www.missioncriticalemail.com/
Zeta Alliance http://www.zetalliance.org/
prizes
Posts: 7
Joined: Mon Nov 30, 2020 11:29 am

Re: Double respone with code 220 from smtp

Postby prizes » Sun Nov 21, 2021 8:16 pm

zimbra@mail:~$ zmcontrol -v
Release 8.8.15.GA.3869.UBUNTU18.64 UBUNTU18_64 FOSS edition, Patch 8.8.15_P27.

version indicated above.

But I did not quite understand what kind of log we are talking about. Where and how to find it?
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L. Mark Stone
Elite member
Elite member
Posts: 2299
Joined: Wed Oct 09, 2013 11:35 am
Location: Portland, Maine, US
ZCS/ZD Version: 8.8.15 Network Edition
Contact:

Re: Double respone with code 220 from smtp

Postby L. Mark Stone » Mon Nov 22, 2021 2:12 pm

https://wiki.zimbra.com/wiki/Log_Files

Typically errors are found in zimbra.log (MTA/system) and mailbox.log (mailbox service).
___________________________________
L. Mark Stone
Mission Critical Email - Zimbra VAR/BSP/Training Partner https://www.missioncriticalemail.com/
Zeta Alliance http://www.zetalliance.org/
prizes
Posts: 7
Joined: Mon Nov 30, 2020 11:29 am

Re: Double respone with code 220 from smtp

Postby prizes » Thu Dec 02, 2021 6:04 am

I did not notice any errors in the logs.

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