I added a bunch of email accounts to my plesk 5 box. I check them all with Outlook XP.
All the rest can checkthe mail fine, but one domain always gives me this error.

Task 'mail.xxx.com - 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).'

Then every once I a while, one of the other domains will give the same error. Any idea on a fix for this?
Best Regards

You will need to change the amount of pop3 connections that can connect from one ip.

edit the file - /usr/lib/courier-imap/etc/pop3d

Change the following to say 10

MAXPERIP=10

And then restart courier-imap

Thanks that worked great

No problem. It stumped me for a while when I had the same problem

Thanks for this - very useful.

That's literally the first time i've ever sent/recieved email w/o errors since getting Plesk.

Thanks for the hint!

Excellent post! Thanks

You sir are a genius! This has been kicking my butt for months. I just spent 2 hours trying to resolve it. I guess I should know to look here first.