Outlook deletes one attachment, creates copy of another

[ldriskell]

Here's the scenario:

Office XP, Outlook integrated with iManage, sporadic
unpredictable problem. User attaches a Word document and
either a Visio file or PDF to an email (which is not
necessarily to say it couldn't happen with other types of
files, but we've only seen it with these two). When it is
sent -- and it doesn't matter if it's internal or external
-- the Visio or PDF is deleted from the email and replaced
with a Word document with the exact same name as the one
attached. It has identical contents as well. The only
difference is that copy always comes out to be roughly 3kb
smaller than the original. It does not only appear this way
for the recipient; the user can go to his Sent items and
see that this is the case.

Any ideas why this would happen?

 

[ldriskell]

By the way, this also occurs with local documents not just
docs pulled from the iManage database. But iManage is still
integrated with Outlook so perhaps its somehow part of the
equation in the background.

This occurs with emails sent within our network and with
outside email addresses.

 

[Robert]

Have your Administrator check the systems Antivirus
software and the method in which it handles attachments
and also what it does with attachments it thinks are
infected with a virus.