Hello list,

I hope you can help me!

My self-compiled dovecot 2.2.6 (and the two minor versions before, too) throws that errors:

Nov 28 18:29:00 mailserv dovecot: imap(martin@example.com): Error: Transaction log /srv/vmail/example.com/martin/Maildir/dovecot.index.log: duplicate transaction log sequence (25) Nov 28 18:29:00 mailserv dovecot: imap(martin@example.com): Error: /srv/vmail/example.com/martin/Maildir/dovecot.index log position went backwards (24,40 < 25,10028)

... and so on ... duplicate transaction log sequences and backwards gone log positions, and this always, when I use at least two IMAP clients at the same time (better: the two clients are online and logged in at the same time).

That happens only with one user (me ;-) ), the other about 15 users on this server are having no problems.

What I see: the clients are bothering each other, but I don't know, why.

I thought about the used reiserfs filesystem on the server, but there were no problems with 1.2 on the same server.

Some words about my client setup: I use Thunderbird and iPhone at the same time, and as a third client on the same Server there is a Thunderbird instance at my company, which runs parallel to the other two. Seems to be weired, but isn't really (IMHO ;-) ). Sometimes there are two TBs at the same mailbox, sometimes only the iPhone and a TB, sometimes all three.

This runs quite good for long time with dovecot 1.2 and 2.1.x (the last one at my company in a similary setup with more users and several clients at the same time).

Maybe there is an error by using "my" build configurations (I think, not)?

---- configures -------------------

./configure
--prefix=/usr/local
--with-sql
--with-ssl
--with-mysql

Here are my dovecot.conf (only the changes of defaults) - maybe there is a misconfiguration?

---- dovecot.conf -----------------

# 2.2.6: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-028stab101.1 x86_64 Ubuntu 10.04.4 LTS reiserfs auth_master_user_separator = * auth_mechanisms = plain login auth_socket_path = /usr/local/var/run/dovecot/auth-master default_internal_user = vmail default_login_user = vmail dict { acl = mysql:/etc/dovecot/dovecot-dict-acl-sql.conf.ext } disable_plaintext_auth = no imap_capability = +NAMESPACE imap_client_workarounds = delay-newmail tb-lsub-flags tb-lsub-flags tb-extra-mailbox-sep listen = * log_timestamp = "%Y-%m-%d %H:%M:%S " login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_access_groups = vmail mail_location = maildir:/srv/vmail/%d/%n/Maildir mail_privileged_group = vmail mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave imapflags notify namespace { list = yes location = maildir:%%Lh/Maildir/:INDEX=%%Lh/shared-idx/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace { hidden = no list = yes location = maildir:/srv/vmail/public prefix = public/ separator = / subscriptions = no type = public } namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl autocreate = Trash autocreate2 = Spam autocreate3 = Sent autocreate4 = Drafts autosubscribe = Trash autosubscribe2 = Spam autosubscribe3 = Sent autosubscribe4 = Drafts sieve = ~/.dovecot.sieve sieve_after = /srv/vmail/sieve/after.sieve sieve_before = /srv/vmail/sieve/before.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_global_dir = /srv/vmail/sieve sieve_global_path = /srv/vmail/sieve/globalsieverc } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh postmaster_address = postmaster@%d protocols = imap pop3 quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0600 user = vmail } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } service imap { process_limit = 2048 vsz_limit = 256 M } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { inet_listener pop3 { port = 110 } } ssl_cert =

local 1.2.3.4 { ssl_cert =

Thank you very much for your time and help!

Greetings, Martin