failed login pop3 and smtp authentication

wp11b

Active Member
Feb 23, 2009
42
0
56
hi all,

i have a problem with a cpanel pop3 service
the problem is a login in pop3 .. all the mail clients on port 110 respond with a login failed. also with smtp authentication login failed. it was happened twice and the temporary solution only restart the server. i have cross check the log and nothing strange. anybody could share ?
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,218
463
Hello :)

You can try browsing the following log file for a specific error message:

Code:
/var/log/maillog
Try searching the log for the specific date/time you experienced this issue to see what the output was.

Thank you.
 

wp11b

Active Member
Feb 23, 2009
42
0
56
okay,
maillog got error :

Apr 4 11:51:20 massvr2 pop3d: LOGIN FAILED, [email protected], ip=[::ffff:10.63.10.184]
Apr 4 11:51:20 massvr2 pop3d: authentication error: Input/output error
Apr 4 11:51:20 massvr2 pop3d: LOGIN FAILED, [email protected], ip=[::ffff:10.82.12.23]
Apr 4 11:51:20 massvr2 pop3d: authentication error: Input/output error
Apr 4 11:51:20 massvr2 pop3d: LOGIN FAILED, [email protected], ip=[::ffff:10.63.10.68]
Apr 4 11:51:20 massvr2 pop3d: authentication error: Input/output error
Apr 4 11:51:21 massvr2 pop3d: Connection, ip=[::ffff:110.136.198.52]

any assist ?
 

hbouma

Well-Known Member
Jun 8, 2002
60
0
306
I just had this happen on four different cpanel servers at the same time today so something seems to be up.
 

wp11b

Active Member
Feb 23, 2009
42
0
56
today this problem happned again, any body would share about this problem. today we tried to force update. increased Authentication Daemons. still not solve
 

wp11b

Active Member
Feb 23, 2009
42
0
56
i think it's because high load cpu process, i did top command but didn't found what make cpu high, any body can share with me. because when did top show very fast
 

wp11b

Active Member
Feb 23, 2009
42
0
56
i think it's because high load cpu process, i did top command but didn't found what make cpu high, any body can share with me. because when did top show very fast
 

jhio

Member
Nov 3, 2005
6
0
151
I have the same problem.. same line on log and I've not been able to find the cause, I'm not an expert.. any help please??
thanks a lot for your time