[Mailman-Users] sender/envelope addresses esp with mailed commands
Nigel.Metheringham at vdata.co.uk
Mon Jul 12 13:47:29 CEST 1999
I tried experimenting with the mail command interface to MailMan with
total lack of success until I discovered some oddities regarding the
detection of sender addresses.
I am using Mailman 1.0rc3 (same result with 1.0rc2). I have the
default zero setting for USE_ENVELOPE_SENDER. The MUA I am using on
the test account is Netscape running on Linux connecting through an ISP
by POP/SMTP. Netscape appears to add a "Sender: nigel" header - ie my
unqualified user name, which is not qualified by any of the MTAs on the
way (basically none of the MTAs will have sufficient information to
qualify it so they shouldn't be playing with it).
Commands sent to the list-request address are responded to by mailman,
which helpfully (!) sends replies to "nigel" on the list machine and
complains during subscribe operations about an unqualified email
Fixing up the sender header is not really an option - it impacts to
many other peoples systems.
I tried just stripping the sender header (assuming that would cause a
drop back to From: headers as is implied in the FAQ etc), and managed
to completely break list posting :-(
So I guess that Mailman, to be safe, should check the sender address
more carefully - specifically if it is not qualified then it should
discard it and use the From: or envelope (maybe Return-Path:) address
in its place.
[ Nigel Metheringham Nigel.Metheringham at VData.co.uk ]
[ Phone: +44 1423 850000 Fax +44 1423 858866 ]
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