[Dovecot] imap sent-mail folder sometimes dosen't get updated when used by more than a mailer at the same time.

[Diego Liziero]

Hi,
I'm collecting users feedback of latest dovecot 1.1.rc3 development release.

Some users are complaining that their sent mails sometimes don't get
written to imap Sent-mail folder.

It seems that all these users were using multiple istances of imap
processes to read their mail
(thunderbird+horde-imp, evolution+horde-imp or multiple thunderbird istances).

No error message is written in dovecot.log, no user feedback in
horde-imp/evolution.
Only thunderbird says it can't update Sent folder.

Has anyone had similar issues?

Diego.