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