The mailing list for listmasters using Sympa

[Paul Barton <address@concealed>]

Check to see if the list in question is set to 'html-only' for either
the default reception or even on a per-subscriber basis. We found that
PDF attachments from Gmail senders often get blocked if a
list/subscriber is html-only since PDF's aren't HTML.

-Paul

* address@concealed (address@concealed) wrote:
> We are running Sympa 6.2.22, though this problem started before the latest
> upgrade. Users have reported to us that some of the attachments being sent 
> to
> their mailing lists are being mysteriously removed from the message the
> subscribers receive. The same thing can happen with inline images.
> 
> We have a large number (several thousand) of mailing lists and the problem
> seems to affect different lists at random. Also, if the missing attachment 
> is
> re-sent to the same list a few minutes later, it will usually be delivered, 
> so
> it's very hard for us to reproduce. When viewing the Archive for that 
> mailing
> list, the attachment is there. We have compared the Exim MTA logs (running 
> on
> the Sympa server) and can see the size of the outgoing message is much 
> smaller
> than the one that arrives - so it is not some external system removing the
> attachments.
> 
> I wonder if anyone has experienced this issue or has any suggestions?
> 
> Thanks,
> Xand
> 
> --
> Xand Meaden | Server Infrastructure Officer
> IT Development, Information Services, University of Kent
> Room S21, Cornwallis South
> Canterbury, Kent, CT2 7NF, UK
> 
> www.kent.ac.uk/itservices | @UnikentUnseenIT

-- 
Paul Barton <address@concealed>
Lead Linux Systems Administrator