imap account DISCONNECTED

[SpirosA]

i have plesk 11.5.30 in centos

in log mail i see so many disconnections and time outs and at the same time I lose connection to outlook imap account

Nov 22 20:21:22 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=16603, body=489629, rcvd=1555805, sent=557443, time=19208, starttls=1
Nov 22 20:21:23 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=3682, body=305304, rcvd=329448, sent=378263, time=19198, starttls=1
Nov 22 20:21:42 xxxxxxx courier-imapd: TIMEOUT, user=ixxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=597, sent=1909, time=7126
Nov 22 20:21:42 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=56549, sent=728056, time=19229
Nov 22 20:21:43 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=57155, sent=132395, time=19230
Nov 22 20:21:44 xxxxxxx courier-imapd: TIMEOUT, xxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=11055, sent=25968, time=19240
Nov 22 20:21:44 xxxxxxx courier-imapd: TIMEOUT, xxxxxxx , ip=[::ffff:xxxxxxx ], headers=269, body=10474, rcvd=11690, sent=42352, time=19239
Nov 22 20:21:45 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=11141, sent=27457, time=19236, starttls=1
Nov 22 20:21:45 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=46138, sent=107991, time=14850, starttls=1
Nov 22 20:21:45 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=2043, body=33026, rcvd=10798, sent=61666, time=19235
Nov 22 20:21:45 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=3342, body=34527, rcvd=9113, sent=112460, time=19232
Nov 22 20:21:46 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=1662, body=30401, rcvd=34411, sent=151248, time=19230
Nov 22 20:21:46 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=1300, body=41059, rcvd=8670, sent=201990, time=19238
Nov 22 20:21:46 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=5196, body=92902, rcvd=35226, sent=278259, time=19241
Nov 22 20:21:46 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=3943, body=162626, rcvd=4317, sent=187760, time=19235
Nov 22 20:21:46 xxxxxxx courier-imapd: TIMEOUT, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=998, body=27077, rcvd=70846, sent=290033, time=19230
Nov 22 20:32:29 xxxxxxx courier-imapd: DISCONNECTED, user=xxxxxxx r, ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=55, sent=363, time=0
Nov 22 20:32:29 xxxxxxx courier-imapd: Connection, ip=[::ffff:xxxxxxx ]
Nov 22 21:17:25 xxxxxxx courier-imaps: DISCONNECTED, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=0, body=0, rcvd=1534, sent=10947, time=4956, starttls=1
Nov 22 21:17:25 xxxxxxx courier-imaps: DISCONNECTED, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=1072, body=18639, rcvd=3254, sent=70194, time=4955, starttls=1
Nov 22 21:17:26 xxxxxxx courier-imaps: DISCONNECTED, user=xxxxxxx , ip=[::ffff:xxxxxxx ], headers=692, body=27805, rcvd=2608, sent=83568, time=4956, starttls=1

What could be wrong;

I have also set
MAXDAEMONS=200
MAXPERIP=100

 

[abdi]

Hi,
Besides the logs, are you experiencing any mail problems? or having email complaints?

 

[SpirosA]

Hi,
Besides the logs, are you experiencing any mail problems? or having email complaints?

yes in the daytime imap accounts disconnected
and in outlook show error upon receipt/receive email .... and after a few minutes returns

 

[philippe henneau]

same issue here with same configuration. Additional info: it happens with users in the USA with iphone (our servers in Europe). European users not impacted. Should we disable IDLE in IMAP_CAPABILITY in /etc/courier-imap/imapd?

 

[HMoellendorf87]

Hi,

do you have this symptom only over the daytimes? What does "top" shows on daytime?

Kind regards
Henning

 

[philippe henneau]

Hi,

do you have this symptom only over the daytimes? What does "top" shows on daytime?

Kind regards
Henning

no details about when it happened but I can confirm that remove IDLE solved the issue