hi,

dovecot from the debian lenny backports does not successfully accept incomming imap or imaps connections; when the client connect i can see the clients ip address in an imap-process but the client cannot succesfully connect and retries this several times where an new imap-process is bound until the maximum connections per client is reached; when the client is closed the imap-processes on the server stay opened, even when dovecot will be restarted or stopped - the processes needs to killed manually;

--- snip --- 2010-05-14 02:24:42 auth(default): Info: client in: AUTH 1
PLAIN service=imap secured lip=y.y.y.y rip=x.x.x.x
lport=993 rport=1411 2010-05-14 02:24:42 auth(default): Info: client out: CONT 1 2010-05-14 02:24:42 auth(default): Info: client in: CONT 1
AGFsZXhAdXZzdCrhdAB5YWxpbWVybw== 2010-05-14 02:24:42 auth-worker(default): Info: sql(alex@domain.tld,x.x.x.x): query: SELECT username AS user, password, '/var/vmail/domain.tld/alex' AS userdb_home, 'maildir:/var/vmail/domain.tld/alex' AS userdb_mail, 150 AS userdb_uid, 8 AS userdb_gid FROM mailbox WHERE username = 'alex@domain.tld' AND active = '1' 2010-05-14 02:24:42 auth(default): Info: client out: OK 1
user=alex@domain.tld 2010-05-14 02:24:42 auth(default): Info: master in: REQUEST 2
2177 1 2010-05-14 02:24:42 auth(default): Info: prefetch(alex@domain.tld,x.x.x.x): success 2010-05-14 02:24:42 auth(default): Info: master out: USER 2
alex@domain.tld home=/var/vmail/domain.tld/alex
mail=maildir:/var/vmail/domain.tld/alex uid=150 gid=8 2010-05-14 02:24:42 imap-login: Info: Login: user=alex@domain.tld, method=PLAIN, rip=x.x.x.x, lip=y.y.y.y, TLS 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: Loading modules from directory: /usr/lib/dovecot/modules/imap 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib10_quota_plugin.so 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib11_imap_quota_plugin.so 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: Effective uid=150, gid=8, home=/var/vmail/domain.tld/alex 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: Quota root: name=storage=102400 backend=maildir args= 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: maildir: data=/var/vmail/domain.tld/alex 2010-05-14 02:24:42 IMAP(alex@domain.tld): Info: maildir++: root=/var/vmail/domain.tld/alex, index=, control=, inbox=/var/vmail/domain.tld/alex 2010-05-14 02:24:42 auth(default): Info: new auth connection: pid=2186 2010-05-14 02:24:45 auth(default): Info: client in: AUTH 1
PLAIN service=imap secured lip=y.y.y.y rip=x.x.x.x
lport=993 rport=1412 2010-05-14 02:24:45 auth(default): Info: client out: CONT 1 2010-05-14 02:24:45 auth(default): Info: client in: CONT 1
AGFsZXhAdXZzdCrhdAB5YWxpbWVybw== 2010-05-14 02:24:45 auth-worker(default): Info: sql(alex@domain.tld,x.x.x.x): query: SELECT username AS user, password, '/var/vmail/domain.tld/alex' AS userdb_home, 'maildir:/var/vmail/domain.tld/alex' AS userdb_mail, 150 AS userdb_uid, 8 AS userdb_gid FROM mailbox WHERE username = 'alex@domain.tld' AND active = '1' 2010-05-14 02:24:45 auth(default): Info: client out: OK 1
user=alex@domain.tld 2010-05-14 02:24:45 auth(default): Info: master in: REQUEST 3
2075 1 2010-05-14 02:24:45 auth(default): Info: prefetch(alex@domain.tld,x.x.x.x): success 2010-05-14 02:24:45 auth(default): Info: master out: USER 3
alex@domain.tld home=/var/vmail/domain.tld/alex
mail=maildir:/var/vmail/domain.tld/alex uid=150 gid=8 2010-05-14 02:24:45 imap-login: Info: Login: user=alex@domain.tld, method=PLAIN, rip=x.x.x.x, lip=y.y.y.y, TLS 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Loading modules from directory: /usr/lib/dovecot/modules/imap 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib10_quota_plugin.so 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib11_imap_quota_plugin.so 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Effective uid=150, gid=8, home=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Quota root: name=storage=102400 backend=maildir args= 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: maildir: data=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: maildir++: root=/var/vmail/domain.tld/alex, index=, control=, inbox=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 auth(default): Info: new auth connection: pid=2189 2010-05-14 02:24:45 auth(default): Info: new auth connection: pid=2188 2010-05-14 02:24:45 auth(default): Info: client in: AUTH 1
PLAIN service=imap secured lip=y.y.y.y rip=x.x.x.x
lport=993 rport=1413 2010-05-14 02:24:45 auth(default): Info: client out: CONT 1 2010-05-14 02:24:45 auth(default): Info: client in: CONT 1
AGFsZXhAdXZzdC5hdABrYWxpbWVybw== 2010-05-14 02:24:45 auth-worker(default): Info: sql(alex@domain.tld,x.x.x.x): query: SELECT username AS user, password, '/var/vmail/domain.tld/alex' AS userdb_home, 'maildir:/var/vmail/domain.tld/alex' AS userdb_mail, 150 AS userdb_uid, 8 AS userdb_gid FROM mailbox WHERE username = 'alex@domain.tld' AND active = '1' 2010-05-14 02:24:45 auth(default): Info: client out: OK 1
user=alex@domain.tld 2010-05-14 02:24:45 auth(default): Info: master in: REQUEST 4
2186 1 2010-05-14 02:24:45 auth(default): Info: prefetch(alex@domain.tld,x.x.x.x): success 2010-05-14 02:24:45 auth(default): Info: master out: USER 4
alex@domain.tld home=/var/vmail/domain.tld/alex
mail=maildir:/var/vmail/domain.tld/alex uid=150 gid=8 2010-05-14 02:24:45 imap-login: Info: Login: user=alex@domain.tld, method=PLAIN, rip=x.x.x.x, lip=y.y.y.y, TLS 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Loading modules from directory: /usr/lib/dovecot/modules/imap 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib10_quota_plugin.so 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib11_imap_quota_plugin.so 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Effective uid=150, gid=8, home=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Quota root: name=storage=102400 backend=maildir args= 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: maildir: data=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: maildir++: root=/var/vmail/domain.tld/alex, index=, control=, inbox=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 auth(default): Info: client in: AUTH 1
PLAIN service=imap secured lip=y.y.y.y rip=x.x.x.x
lport=993 rport=1414 2010-05-14 02:24:45 auth(default): Info: client out: CONT 1 2010-05-14 02:24:45 auth(default): Info: client in: CONT 1
AGFsZXhAdXZzdC5hdABrYWxpbWVybw== 2010-05-14 02:24:45 auth-worker(default): Info: sql(alex@domain.tld,x.x.x.x): query: SELECT username AS user, password, '/var/vmail/domain.tld/alex' AS userdb_home, 'maildir:/var/vmail/domain.tld/alex' AS userdb_mail, 150 AS userdb_uid, 8 AS userdb_gid FROM mailbox WHERE username = 'alex@domain.tld' AND active = '1' 2010-05-14 02:24:45 auth(default): Info: client out: OK 1
user=alex@domain.tld 2010-05-14 02:24:45 auth(default): Info: master in: REQUEST 5
2188 1 2010-05-14 02:24:45 auth(default): Info: prefetch(alex@domain.tld,x.x.x.x): success 2010-05-14 02:24:45 auth(default): Info: master out: USER 5
alex@domain.tld home=/var/vmail/domain.tld/alex
mail=maildir:/var/vmail/domain.tld/alex uid=150 gid=8 2010-05-14 02:24:45 imap-login: Info: Login: user=alex@domain.tld, method=PLAIN, rip=x.x.x.x, lip=y.y.y.y, TLS 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Loading modules from directory: /usr/lib/dovecot/modules/imap 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib10_quota_plugin.so 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Module loaded: /usr/lib/dovecot/modules/imap/lib11_imap_quota_plugin.so 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Effective uid=150, gid=8, home=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: Quota root: name=storage=102400 backend=maildir args= 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: maildir: data=/var/vmail/domain.tld/alex 2010-05-14 02:24:45 IMAP(alex@domain.tld): Info: maildir++: root=/var/vmail/domain.tld/alex, index=, control=, inbox=/var/vmail/domain.tld/alex 2010-05-14 02:24:46 auth(default): Info: new auth connection: pid=2192

--- snip ---

i have a working installation from the stable repository with the same settings - but i need the newer dovecot for the nfs feature; i know there was a kernel bug prior 2.6.27 which also causes such a problem, but i have now the 2.6.32 running and still having this problem

• no client connection could be established....

has anyone a idea or a solution for me?

thx, alex