Recently, I have been having problems when opening Outlook Express to look at my e-mails, although my user name and password are there, the box is saying that they aren't recognized. Sometimes when this happens I click OK and then everything reverts to normal, and it all opens up. Today it won't open up at all just the error box keeps coming back. It shows the following: POP3 Server Error 0x800CCC90 POP3 Error Number 0x800CCC921 person needs an answerI do too

The first thing I'd do is to log into my mailbox via a web browser to make sure the credentials work that way.Brian Tillman [MVP-Outlook]--------------------------------https://mvp.support.microsoft.com/profile/Brian.TillmanIf a reply helps, please vote it as helpful. If a reply solves the issue, please mark it as an answer.

The first thing I'd do is to log into my mailbox via a web browser to make sure the credentials work that way. The next thing I'd do is completely uninstall my antivirus program and reinstall it without the mail scanning feature. Antivirus programs scanning mail is a big cause of this particular problem.Brian Tillman [MVP-Outlook]--------------------------------https://mvp.support.microsoft.com/profile/Brian.TillmanIf a reply helps, please vote it as helpful. If a reply solves the issue, please mark it as an answer.