[imp] Sent mail

[Simon Chappell]

 Does anyone else have an inconsistent problem with mails not saving to sent
 mail?
 I am running qmail-ldap with courier-Imap Horde 2.1 and Imp 3.1. It is a
 fantastic system and I love it, but some of the users are bleating about
mails
 not being recorded in sent-mail.  It seems to be random. I ran a test of 10
 emails and all but 2 worked ok.

Does anyone have any idea's where to start?

Regards

Simon