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Topic: Socket connection was aborted by remote h

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BramV
Newbie
Newbie

Joined: 11 July 2012
Location: Belgium
Online Status: Offline
Posts: 2

Posted: 11 July 2012 at 5:58am \| IP Logged

Hello,

We are using hMailserver 5.3.3 production release and WebMail Lite 5.1.4 for .NET.
Lately we are experience an issue where users can't login. The error "Can't connect to POP3 server" is shown.
In the logs I can find the following errors. Sometimes after a few hours it's working again. I have no idea what's causing this.

hMailserver is working correctly and a POP3 connection with a client like Outlook works without any problem.

Anyone an idea?

Standard WebMail logging:
[17:50:50.82] [INFO] Assembly version: 6.0.2.220.
[17:50:50.82] [INFO] Will resolve host "localhost".
[17:50:50.82] [INFO] Host "localhost" resolved to IP address(es) 127.0.0.1.
[17:50:50.82] [INFO] Will connect to host "localhost" on port 110.
[17:50:50.82] [INFO] Socket connected to IP address 127.0.0.1 on port 110.
[17:50:50.82] [INFO] Error: Socket connection was aborted by remote host.
[17:50:50.82] [INFO] Will disconnect from host "localhost".
[17:50:50.82] [INFO] Disconnected from host "localhost".

Detailed WebMail logging:
------------------------------------------------------------
[11/07/2012 14:30:39] ERROR!!!
[Message]
Socket connection was aborted by remote host.
[TargetSite]
Void a(a.d)
[Stack Trace]
   at a.aw.a(d A_0)
   at a.aw.ai()
   at a.n.a(String A_0, Int32 A_1, Boolean A_2, Socket A_3, EndPoint A_4)
   at a.n.x()
   at a.al.a(Boolean A_0, String A_1, Int32 A_2, Boolean A_3, Socket A_4, EndPoint A_5)
   at MailBee.Pop3Mail.Pop3.Connect(String serverName, Int32 port, Boolean pipelining)
   at WebMail.Pop3Storage.Connect()
[Method]: a
[Line, Column]: [0, 0]
------------------------------------------------------------
------------------------------------------------------------
[11/07/2012 14:30:39] ERROR!!!
[Message]
Can't connect to POP3 server, check POP3 server settings.
[TargetSite]
Void Connect()
[Stack Trace]
   at WebMail.Pop3Storage.Connect()
   at WebMail.MailProcessor.Synchronize(FolderCollection folders)
   at WebMail.check_mail.CheckMailForAccount(Account acct)
[Method]: Connect
[Line, Column]: [0, 0]
------------------------------------------------------------

Igor
AfterLogic Support

Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6104

Posted: 12 July 2012 at 1:39am \| IP Logged

Most probably, hMailServer is blocking the connection attempts, maybe due to its auto-ban feature (IP gets blocked upon several failed login attempts). Also, if the system runs some kind of protective software (antispam, antivirus, firewall), you might want to disable it temporarily and see if that helps. If it does, consider whitelisting the application there.

--
Regards,
Igor, AfterLogic Support

BramV
Newbie
Newbie

Joined: 11 July 2012
Location: Belgium
Online Status: Offline
Posts: 2

Posted: 12 July 2012 at 2:40am \| IP Logged

You are right, the problem was the auto-banning.
Thanks for the support Igor.

If anyone wants to read more about this issue:
http://www.hmailserver.com/forum/viewtopic.php?f=10&t=15140

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