December 9th, 2005, 10:31 PM
Suddenly Blocking POP3??
I have a WIERD problem this afternoon.
Alas, everything always has to break down Friday afternoon so as to postpone my weekend as long as possible. [/whine]
No one can check POP3 mail all of a sudden. We can receive mail, and we can access mail via web control panel, but we cannot receive any mail via a mail client (thunderbird, outlook, etc.). I get a "connection refused" error. This only began within the last hour.
Firewall log shows this:
That appears every time I get a "connection refused" error trying to check mail. But why is this being dropped at the firewall? I haven't made any configuration changes to the firewall (SonicWALL SOHO3), and it was set up to allow POP3 to slide right on in, as it has been all along. For some reason, within the last hour or so, it just decided it doesn't want to anymore.
12/09/2005 16:27:49.736 TCP connection dropped
Source: 192.168.1.12, 3836
Destination: LAN 184.108.40.206, 110, WAN
'Retrieve Email (POP3)'
So I'm rather lost on this one. Any ideas?
December 9th, 2005, 11:21 PM
December 9th, 2005, 11:58 PM
U:\>nc -vv -n 220.127.116.11 110
(UNKNOWN) [18.104.22.168] 110 (?) open
Bukhari:V3B48N826 “The Prophet said, ‘Isn’t the witness of a woman equal to half of that of a man?’ The women said, ‘Yes.’ He said, ‘This is because of the deficiency of a woman’s mind.’”
December 10th, 2005, 12:04 AM
Sounds like the POP3 server is down.
No one can check POP3 mail all of a sudden.
When you attempt to recieve email using Outlook what error number do you get? It should start with 0x888cccxx something? Have you tried clearing the outbox? Also, deleting and rebuilding e-mail account? Have you tried using Putty to see if you can duplicate the issue? Send your self a test message within outlook? Just to generate an error number.
We can receive mail, and we can access mail via web control panel, but we cannot receive any mail via a mail client (thunderbird, outlook, etc.). I get a "connection refused" error. This only began within the last hour.
December 10th, 2005, 01:11 AM
How about your AV, does it have POP scanning, I know Trend Micro has a habit of replacing the POP server account name with localhost, and we have to reset the account....
PC Registered user # 2,336,789,457...
"When the water reaches the upper level, follow the rats."
December 10th, 2005, 08:00 AM
As TS has said, your connection is being refused so the server you are trying to connect to for some reason is not allowing you to. Hence this is almost certainly a fault/problem at the other end
My first thought was a user name/pass word error in outlook but that generates a authentication error not a connection error.
Is the server part of your domain or is it an external one?
If it is external have a check with who ever runs it to see if the have upgraded the security of it, i.e. Secure Password Authentication or the have decided it needs a SSL connection. If they have you will have to change your mail account settings in Outlook.