[Mailman-Users] Interesting problem with gmail users
Mark Sapiro
mark at msapiro.net
Tue Dec 7 19:13:13 CET 2010
Paul Tomblin wrote:
>
>I suspect it has something to do with the way GMail puts a
>DKIM-Signature and DomainKey-Signature on outgoing mail. Something
>Mailman is doing is making the signatures invalid.
If your list adds msg_header or msg_footer, that almost certainly
breaks the signatures. If your list makes no alterations to the
message body or subject or reply-to headers, it shouldn't break the
signatures, but certain Python email library transformations over
which Mailman has no control may break them anyway.
>As a matter of
>fact, doing a "Show original" on a couple of the flagged messages
>seems to confirm that, with messages like
>
>Authentication-Results: mx.google.com; spf=pass (google.com: domain of
>geeks-bounces at list.xcski.com designates 69.164.214.240 as permitted
>sender) smtp.mail=geeks-bounces at list.xcski.com; dkim=neutral (body
>hash did not verify) header.i=@gmail.com
>
>So what are my options here? Can I strip out the DKIM headers within
>Mailman? Or should I just configure my mailserver to add a DKIM
>header?
Beginning in Mailman 2.1.7, these signatures were removed. Beginning in
Mailman 2.1.10, this removal was made conditional on the new mm_cfg.py
setting REMOVE_DKIM_HEADERS which defaults to No.
So, assuming your Mailman is 2.1.10 or later, you can configure it to
remove the headers by putting
REMOVE_DKIM_HEADERS = Yes
in mm_cfg.py.
--
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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