I'm having some issues with a client of mine, a school. Outlook 2010 has been installed for around a year, working away perfect using one of the staff email accounts. For some unknown reason a few weeks ago the account hasn't been able to send email, all email now gets stuck in the Outbox. When it gets stuck, I'm presented with the following error:
Task 'email@address.edu - Sending' reported error (0x800CCC0B) : 'Unknown Error 0x800CCC0B'
I have been through a range of different methods to figure this out (in no particular order..):
- Uninstall/reinstall Office
- Update Office to the latest service packs and hotfixes
- Update the timeout period to 5mins (from 1min)
- Remove/readd accounts, when I do this I can't actually reconfigure the account, when it attempts to do the test I get the following error:
Send test e-mail message: The connection to the server was interrupted. If this problem
continues, contact your server administrator or Internet service provider (ISP).
Other information you may want:
- The computer is joined to a domain, accessing the email remotely via POP3/SMTP
- Receiving email works without any issues
- The credentials are all correct and work on another computer next to this one
- I have swapped the ethernet cable / port to the switch in case it was networking
- The computer is running Windows 7 Professional x86
- The computer is running Office 2010 Standard x86
Any help/suggestions would be appreciated, I'm not opposed to thinking that it's an issue related to Windows instead of Office (and I've even seen references to it being a hardware issue, but this is a fairly new computer).