[Mailman-Users] Problems using Postfix with Mailman

[Christopher Adams]

Yes, you are so right. I did have an entry for 127.0.0.1  localhost in
/etc/hosts, but also the entry for IPV6, which I didn't need and it
apparently took preference.

So, this did help and I thank you. Additionally, there was some
configuration in the Postfix main.cf that needed updating due to a change
in the version of Postfix.

Many thanks, Mark.
On May 3, 2016 5:56 PM, "Mark Sapiro" <mark at msapiro.net> wrote:

> On 05/03/2016 04:50 PM, Christopher Adams wrote:
>
> > In the maillog file, I get NOQUEUE: reject RCPT from localhost [::1] 454
> > 4.71 <my.address at mydomain.com>: Relay access denied; from=<
> > mylist-bounces at mymailmanserver.com>
> >
> > In the Mailman smtp-failure log file, I get: "Relay access denied"
> >
> >>From all that I have read, it must be a Postfix configuration problem,
> but
> > since I just moved the old main.cf to the new server, I am perplexed.
> Posts
> > to the Postfix-Users list has not been productive.
>
>
> Right, and the problem is you didn't change the postfix main.cf to match
> the RedHat/CentOS change in /etc/hosts.
>
> The issue is that mailman is sending to 'localhost', /etc/hosts is
> defining localhost as the IPv6 address [::1], and this is not in
> mynetworks in main.cf. There are various ways to fix this including
> replacing the localhost entry in /etc/hosts - something like
>
> ::1     localhost
>
> with
>
> 127.0.0.1  localhost
>
> or adding [::1]/128 to mynetworks in main.cf.
>
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan
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