inetinfo.exe and Exchange no delivering mail to users

Hi all!

First of all, i´m not an server expert, so i'll try to explain as clear as i can my problem.

I have a server with Micosoft 2003 Server SBS SP2 and Exchange 2003 which retrieves our corporative mail from a third-party host and delivers it to the user's mail boxes. The PCs of the users are using Office Outlook  2007 to manage their mail. It all worked fine all this time.

Then the server stoped delivering the users mails (we can't either send nor recieve). However, the server is still downloading the incoming mail from the host (the queues are growing). There isn't any error connection between the Outlook and the Exchange server.

There is no warnings or errors in the server's events viewer so i have no more clues to follow.

Trying to resolve the problem i tried to stop and re-start the POP3Conn and SMTP services in the server. I got a time-out error so i tried to stop them using the system administrator stopping the inetinfo.exe application. It didn't work because it automaticly re-started BUT for a few seconds my Outlook client could retrieve the incoming mail from the server.

That's all. I wish i could give you more clues because that's all i know (and i'm not a servers expert).

Any idea?.

Thanks in advance !.

FranVZAsked:
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Darius GhassemConnect With a Mentor Commented:
Have you restarted the server? So, there is no events in the Event Logs?
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FranVZAuthor Commented:
Hi dariusq.

I restarted the server several times but it didn't work.

The same day the server started working wrong it autoinstalled some Microsoft updates (KB950762, KB 951698, KB9449014 and KB 948745). Now i have uninstalled them but there is the same issue.

In the events viewer in the System Log i got the errors 7031 and 7034 several times (IIS, SMTP, POP3 and IMAP services have stoped unexpectly) and error id 1000 in the APP log.

I read that there is a hotfix for this issue, but it is for Win2003 SBS SP1 and mine is SP2 which already includes this hotfix.

Any ideas?

Thanks.
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Darius GhassemConnect With a Mentor Commented:
Do you have Symantec AV or any other filtering service?
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Darius GhassemConnect With a Mentor Commented:
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FranVZAuthor Commented:
Hi dariusq:

The only Simantec product installed in the server is an Backup application. The AV software is the Trend Micro.

I had already read the support link you posted but couldn't apply it because i have a Win 2003 SBS SP2 in my server.

Courious note: Yesterday i uninstalled the Windows updates i thought they could make the Exchange crash but without results. The server re-installed them and re-staredt and now i have incoming and internal mail but not outgoing mail!. The SMTP queue is still growing with the following information: "Remote host doesn´t reply".

In the Systems Log there aren't any 7031/7034 error messages. The SMTP service is working but i have no outgoing mail. And it isn't a remote host problem. In a webmail application i can send mails rightly.

What do you think?.
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Darius GhassemConnect With a Mentor Commented:
Is  your smtp setup correctly? http://www.vladville.com/wiki/doku.php?id=change-exchange-smtp-greeting 

The webmail is not your server correct, right? The webmail is the third-party, right?

Check this post out.

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_23112764.html

Make sure that ISA isn't blocking port 25. I have ran into this problem myself which ended up to be that my domain was blocked. http://www.spamcop.net/bl.shtml 

You don't have any other errors in the Event Log?
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FranVZAuthor Commented:
Hi dariusq.

Finally we worked out the problem: we were generating SPAM and our DSL provider shut down port 25.

You were quite close...

Thank you!
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Darius GhassemConnect With a Mentor Commented:
Good I'm glad everything is working.
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