[imp] Bizarre attachment problem

[Richard Gilbert]

We have been happily running exactly the same horde (2.2.4)/imp (3.2.2) 
set up for most of this year.  Just recently I have come across a number 
of examples where an attachment has been replaced by a random message from 
the sender's mailbox.  The user composed a message and attached e.g. a 
MS-Word document, but the resulting message as received by the recipient 
and as saved in the sender's sent mail folder, while claiming to have the 
named .doc file in the list of attachments, actually has a base64 encoded 
copy of a random message from the sender's inbox.  Where two different 
Word documents were attached they were both replaced by two copies of the 
same message from the inbox.  This may have happened in the past but it 
has only just been brought to my attention.

Things that have changed in our environment since late September are (a) 
upgrading to the latest version of up-imapproxy (1.2.2) and enabling the 
select cache, and (b) running perdition (1.15) because we now have two 
IMAP servers.  Both the imapproxy and perdition are running on the same 
V440 server (Solaris 8) as horde/imp.  However, message composition would 
seem to have very little to do with the IMAP side of things, although an 
IMAP operation would be needed to obtain a copy of the random message from 
the inbox.

Has anybody else seen anything similar, or can anybody offer any 
suggestions as to where to look?

Thank you in anticipation.

Richard
--
Richard Gilbert
Corporate Information and Computing Services
University of Sheffield, Sheffield, S10 2TN, UK
Phone: +44 114 222 3028   Fax: +44 114 222 3040