On Thu, 27 Jan 2005, David Diaz wrote:

> I have an issue with my mail server, I have qmail, vpopmail 5.4.0 and MySQL 
> 4.0.18 everything is fine, but when an user try to conect to mail server 
> using outlook as mail client in the morning or after a long time of 
> inactivity period, the outlook display the follow error message:
> "Task 'server name - Sending and Receiving' reported error (0x800ccc0f): 
> 'The connection to the server was interrupted. If this problem continues, 
> contact your server administrator or Internet service provider (ISP). "
> But if the user try again to connect to server after this error message, the 
> server response fine...
> this error happen just one time...and I don't really know what happen....In 
> my file of mysql configuration I have the follows parameters:

Some versions of Outlook try to receive BEFORE sending mail - so if your 
mail server implements POP-before-SMTP it fails the first time and then 
works the second time.

Other possibilities:

We've found that emails with corrupted headers (most often Date:, which is 
often the case with spam) can cause Outlook to fail to download. The only 
way to download the rest of the email is to delete the corrupted message 
(via WebMail). I have written a maildrop rule that inserts a Date: header 
if it is missing.

Some software firewalls also cause this error message from time-to-time. 
Ive had one customer have this happen with ZoneAlarm. Often its easy to 
remove Outlook from the firewall list of allowed apps and add it again 
when your firewall prompts you.

Of course, there could be server-side issues like MySQL not having enough 
connections but I would rule out the other possibilities first.

Systems Administrator / Developer

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