userlogins logs seems to be ok:

[23-Feb-2012 23:55:09 +0100]: Successful login for xxxxxxx@xxxxxxxx.net (ID: 4) from 81.36.137.222 in session oq35mfhcb07rmmija98ahbph56

imap logs (works):

[23-Feb-2012 23:55:09 +0100]: [5945] S: * OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2008 Double Precision, Inc. See COPYING for distribution information.

[23-Feb-2012 23:55:09 +0100]: [5945] C: A0001 LOGIN xxxx@xxxxxxxx.net xxxxx

[23-Feb-2012 23:55:09 +0100]: [5945] S: A0001 OK LOGIN Ok.

[23-Feb-2012 23:55:09 +0100]: [5945] C: A0002 NAMESPACE

[23-Feb-2012 23:55:09 +0100]: [5945] S: * NAMESPACE (("INBOX." ".")) NIL (("#shared." ".")("shared." "."))

[23-Feb-2012 23:55:09 +0100]: [5945] S: A0002 OK NAMESPACE completed.

[23-Feb-2012 23:55:09 +0100]: [5945] C: A0003 LOGOUT

[23-Feb-2012 23:55:09 +0100]: [5945] S: * BYE Courier-IMAP server shutting down

[23-Feb-2012 23:55:09 +0100]: [5945] S: A0003 OK LOGOUT completed

sql logs:

[23-Feb-2012 23:55:09 +0100]: query(1): SELECT vars, ip, changed FROM session WHERE sess_id = 'fb41l4i16f7hpk8d17d4ka4334';

[23-Feb-2012 23:55:09 +0100]: query(1): DELETE FROM session WHERE sess_id = 'fb41l4i16f7hpk8d17d4ka4334';

[23-Feb-2012 23:55:09 +0100]: query(1): SELECT * FROM users WHERE mail_host = 'localhost' AND username = 'xxxxx@xxxxxxx.net';

[23-Feb-2012 23:55:09 +0100]: query(1): UPDATE users SET last_login = now() WHERE user_id = '4';

[23-Feb-2012 23:55:09 +0100]: query(1): INSERT INTO session (sess_id, vars, ip, created, changed) VALUES ('oq35mfhcb07rmmija98ahbph56', 'bGFuZ3VhZ2V8czo1OiJlc19FUyI7aW1hcF9uYW1lc3BhY2V8YTo0OntzOjg6InBlcnNvbmFsIjthOjE6e2k6MDthOjI6e2k6MDtzOjY6IklOQk9YLiI7aToxO3M6MToiLiI7fX1zOjU6Im90aGVyIjtOO3M6Njoic2hhcmVkIjthOjI6e2k6MDthOjI6e2k6MDtzOjg6IiNzaGFyZWQuIjtpOjE7czoxOiIuIjt9aToxO2E6Mjp7aTowO3M6Nzoic2hhcmVkLiI7aToxO3M6MToiLiI7fX1zOjY6InByZWZpeCI7czo2OiJJTkJPWC4iO31pbWFwX2RlbGltaXRlcnxzOjE6Ii4iO3VzZXJfaWR8czoxOiI0Ijt1c2VybmFtZXxzOjIwOiJ0b3JpZXRAbXVzc29sdGVjLm5ldCI7aW1hcF9ob3N0fHM6OToibG9jYWxob3N0IjtpbWFwX3BvcnR8aToxNDM7aW1hcF9zc2x8TjtwYXNzd29yZHxzOjI0OiJNT1NMaU8wMmVObys5eHdiMGI0ZVd3PT0iO2xvZ2luX3RpbWV8aToxMzMwMDM3NzA5O3RpbWV6b25lfGQ6MTtkc3RfYWN0aXZlfGk6MDs=', '81.36.137.208', '2012-02-23 23:55:09', '2012-02-23 23:55:09');

[23-Feb-2012 23:55:09 +0100]: query(1): SELECT vars, ip, changed FROM session WHERE sess_id = 'oq35mfhcb07rmmija98ahbph56';

[23-Feb-2012 23:55:09 +0100]: query(1): SELECT * FROM users WHERE user_id = '4';

[23-Feb-2012 23:55:09 +0100]: query(1): DELETE FROM session WHERE sess_id = 'oq35mfhcb07rmmija98ahbph56';