The mailing list for listmasters using Sympa

["Riedel, Matthew" <address@concealed>]

Hi Everyone,

I recently upgraded to 6.2.3 from the 6.1.x series, and everything went 
more-or-less smoothly.

We are having an issue I hope you can help me with, though. It seems that, 
sometimes, message attachments are being stripped out before the bulk 
processor sends the message to the list. The attachment is there with the 
archived message, and I  can see in the mail logs the incoming message has an 
attachment, while the outgoing one does not.

Aug 24 15:20:36 lists sendmail[13220]: t7OJKZj7013220: from=<from_addr>, 
size=734745, class=0, nrcpts=1, 
msgid=<CAKPLwX4rdjZ-y+HcUjsdCYm6Oa94vLnNg2rFapXWCptpQB_XoQ>, proto=ESMTP, 
daemon=MTA, relay=relay_addr

Aug 24 15:23:52 lists sendmail[13357]: t7OJNpdk013357: from=list_owner, 
size=3433, class=-30, nrcpts=23, 
msgid=<address@concealed>, 
relay=sympa@localhost

Aug 24 15:23:52 lists sendmail[13358]: t7OJNpwt013358: from=list_owner, 
size=3433, class=-30, nrcpts=23, 
msgid=<address@concealed>, 
relay=sympa@localhost
[…]

The incoming message is the first line in the logs above. Notice it's about 
735KB. The outgoing messages, however, are only ~3.5KB. The attachment limit 
is 5MB.

Sympa doesn't seem to do this all the time, and I can't replicate it on my 
test list. This wasn't happening with the 6.1 branch either.. I do know there 
were major changes to the bulk processor between the 6.1 & 6.2 series of 
Sympa, so I think my issue is there, but I'm not sure where to start looking.

Any pointers would be greatly appreciated!
Thanks,
Matt Riedel