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cthomas

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Came into work this morning and no one could connect to my Kerio 6.5.2 server hosted on Windows XP SP2. Could not connect via Outlook, Entourage or Web Mail.

I could connect to webmail via local host and the server would send outgoing email but network clients could not connect. I could ping the server internally and VNC in but none of the mail ports where responding.

Well, after about two hours of pulling my hair out it seems that somehow the built in Windows XP Firewall got turned on. At least when I turned it off everything started working again.

I checked the Admin guide but it doesn't mention if the XP firewall should be on or off and I don't remember if I originally turned it on when I set the server up or not. Has anyone ever heard of the XP firewall turning itself on?

- C. Thomas
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BudDurland

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You'll probably want to define firewall exceptions for ports 25, 110, and 143 in the XP box. I would not be surprised to find that a Windows "Security Update" enabled the firewall

Good is better than evil because it's nicer
--Mammy Yokum
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cthomas

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Just an FYI, the Windows firewall turned itself on again today. Today I am am positive as I definitely had it off yesterday. I have since added additional exceptions for all the necessary ports in addition to kerio.exe.

I have also been having internal DNS issues which may or may not be related, although I don't see how.

- C. Thomas
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