From the DKIM header assumed added by your MTA:
"
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed;
d=pricom.com.au; s=phr1; x=1620760128; h=MIME-Version:
Content-Type:Content-Transfer-Encoding:Date:From:To:Cc:Subject:
Reply-To:In-Reply-To:References:User-Agent:Message-ID; bh=FmYpFg
As this list adds/ensures "[RCU]" is in the subject, that's at least one
component that's changing. It also appends the mailing list signature as
a footer to the body which changes that too.
I should have dkim on my mails, so I'm curious now how mine's configured
too as I don't see failures
Most mailing list software due to various schemes to cut down on spam,
have to modify the from. Depending on how this is done some strict
interpretations of DKIM/DMARC/etc could block or reject messages.
The Mailman Wiki has a lot of great information on it because Mailman is
a widely used
People,
My mail server guru sent me the response below when I asked him about
getting error messages when I post to the RCM list - can someone tell me
if his analysis is correct?:
Thanks,
Phil.
Original Message
Subject: Re: FW: Re: [RCU] How to Host Multiple Mail Domains
