Hi,

10000 Users (LDAP) Solaris 10 / sparc imap: dovecot-1.1.10 (pam-unix, no direct LDAP access)

Environment: pop: dovecot-1.0.14 on another server (pam-unix, no direct LDAP access) mta: postfix (pam-unix, no direct LDAP access) procmail (pam-unix, no direct LDAP access)

Filesystems: Inboxes and IMAP-home are on two different SAM-FS volumes.

Problem description: Inboxes of users are disappearing / are truncated.

we are using dovecot-1.1.0 since two month as main IMAP server. It replaced our long running but old version of UW-IMAP. Till the last week we had no problems and it worked quite well and the whole mail system worked in this configuration since several years. But since a week we receive more and more complaints regarding truncated/deleted mailboxes. First, we assumed user/client errors, but as such messages arrive more frequently, we did a deep analysis of the issue.

The only common component of our mail system (postfix (local), procmail, pop, imap) that all concerned users have accessed, was dovecot-imap v. 1.1.10.

We have no locking problems, we use fcntl(), dotlock for all mail components. We tested this with a small perl script and locking works fine (no delivery to a locked mailbox and so on...)

Finally, all indications point to a bug in dovecot. Google and searches in this mailing list did not come up with any valuable results.

Are there any known bugs / configuration problems concerned to the described problem?

I greatly appreciate any help!

Thx in advance

Harald Strack