I am having the same problem on a new build mail server. It took me a while to figure out the solution. When mailman failed send out mail for external domain, I got this in mailllog:

Oct 23 22:22:15 zeta postfix/smtpd[5288]: connect from localhost[::1]
Oct 23 22:22:15 zeta postfix/smtpd[5288]: NOQUEUE: reject: RCPT from localhost[::1]: 454 4.7.1 <some...@gmail.com>: Relay access denied; from=<mailman-boun...@mydomain.com> to=<some...@gmail.com> proto=ESMTP helo=<zeta.mydomain.com>
Oct 23 22:22:15 zeta postfix/smtpd[5288]: disconnect from localhost[::1]

I turned on debug for postfix then it show me that it is mynetwork seems not includles localhost. So I changed my main.cf:
mynetworks = 192.168.1.0/24, 127.0.0.0/8 localhost

After this the problem is gone and mail send out as before.

Not sure if this helps your case.

Gao

On 10/22/2015 12:09 PM, kapuz...@web.de wrote:
Hello

I'm using Mailman 2.1.18 as a customer of hosting.

Mailman had worked fine primarily.
After a server-update it deliveres messages only to email-adresses hostet on 
the same server (my own adresses connected to two different tld's).

Using my own adresses everything is going well.
External adresses only can write to the list.
They don't get any mail an any request answers.

A simple forwarding-list to the same adresses - established in plesk-panel - is 
doing its job.

The system is a linux debian 3.16.7.
Mailman was installed via Plesk.
It uses Postfix und Dovecot.

My hoster is a small one, I have a cheap account and I'm the only mailman user.
So I want to help him solving.

The hoster-guy is not familiar to mailman.
He changed the server two times, reinstalled mailman 2.1.5 and then 2.1.18.
Now he is out of idea.

Is this a known problem ?
A simple restriction server-setting ?

Is any further information needed ?
(phpinfo ?)

If any Error logs are required, I have to ask the hoster.

hoping for help

regards
Kapuzino









------------------------------------------------------
Mailman-Users mailing list Mailman-Users@python.org
https://mail.python.org/mailman/listinfo/mailman-users
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/
Unsubscribe: 
https://mail.python.org/mailman/options/mailman-users/gao%40pztop.com

------------------------------------------------------
Mailman-Users mailing list Mailman-Users@python.org
https://mail.python.org/mailman/listinfo/mailman-users
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/
Unsubscribe: 
https://mail.python.org/mailman/options/mailman-users/archive%40jab.org

Reply via email to