[Dovecot] IDLE disconnected

Hi all,

We have just migrate UW-Imap to Dovecot and started getting following errors in logs. Any idea ?

Dovecot version is 2.0.9

Jun 24 11:21:04 imap6 dovecot: imap(users1): Disconnected: Disconnected in IDLE bytes=444/1900 Jun 24 11:21:04 imap6 dovecot: imap(users20): Disconnected: Disconnected in IDLE bytes=126/890 Jun 24 11:21:04 imap6 dovecot: imap(users7): Disconnected: Disconnected in IDLE bytes=364/47709 Jun 24 11:21:04 imap6 dovecot: imap(users29): Disconnected: Disconnected in IDLE bytes=1639/234649 Jun 24 11:21:05 imap6 dovecot: imap(users2): Disconnected: Disconnected in IDLE bytes=2731/22038

-S