[Dshield] Need some help please

Rick Klinge rick at jaray.net
Thu Mar 3 00:40:06 GMT 2005


> "Aaron Lewis" <aaron at adldatacomm.net> writes:
> 
> > Hello, I have a problem that I can't put my finger on. I 
> have a client 
> > who uses my mail server qMail on Linux with HSphere. The 
> mail client 
> > giving us trouble is Outlook Express. All systems are Virus and 
> > Spyware free. Verified as recently as this morning.
> >
> > Here's the problem. Some times when they try to send mail with an 
> > attachment, it fails with error 0x800CCC0F Your server has 
> > unexpectedly terminated the connection. Possible causes for this 
> > include server problems, network problems, or a long period of 
> > inactivity. Account: 'your.mail.account', Server: 
> 'your.mail.server',
> > Protocol: POP3, Port: 110, Secure(SSL): No, Error Number: 0x800CCC0F
> >
> > Now I can reproduce this on Windows 2000 and XP on 3 
> different LAN's 
> > using 3 different ISP's. This is a recent issue within the 
> last month. 
> > I have a capture of a failed message that I don't want to 
> post to the 
> > forum. If you'd like to take a look please ask.
> >
> > If you need information I have not provided please ask for 
> that also.
> 
> What POP3 server are you using? Are you sure it supports SSL 
> on port 110/tcp? - some use the alternate POP3S port 
> (995/tcp).  What certificate does it have? Some clients, esp. 
> Windows ones will reject self-signed (homebrew) certs, 
> instead wanting one which is signed by one of the big CAs.
> 
> cheers,
>  Jamie

Have you checked:

http://support.microsoft.com/default.aspx?scid=kb;en-us;813514

~Rick

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