postfix-users May 2014 archive
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postfix-users: Re: Getting DKIM to work with Mailman and Postfix

Re: Getting DKIM to work with Mailman and Postfix

From: Larry Stone <lstone19_at_nospam>
Date: Mon May 05 2014 - 19:38:16 GMT
To: Postfix users <>

On Mon, 5 May 2014, James B. Byrne wrote:

> And although I have not the life expectancy to read them all I have found and
> read many. And I never said that it was a Postfix PROBLEM. I thought that
> asked if it were not possible to configure Mailman with Postfix so that
> Mailman's forwarded messages are reprocessed through the milters and signed
> thereby opendkim rather then sent on directly. On the face of it the question
> seems reasonable enough. Is there in fact no way to do this?

Of course it's possible. But the how is really a Mailman question, not a
Postfix question, so your question is probably best asked on the Mailman
list. I do it with my Mailman/Postfix server.

But merely adding a DKIM signature at your system will not solve the DMARC
issue. The list you quoted from DMARC FAQ ealier is not a "do one of
these", it's a "do all of these".

Mailman 2.1.18 (released just this past weekend) has workarounds for the
>From and Reply-To piece of this. And despite your claim that you told
Mailman to send to port 587 instead (no proof provided), you must not have
done what you thought you did. But the Mailman list is the place for what
you need.

-- Larry Stone