What would cause calendar entries to get stuck in my outbox in Outlook 2003?

We use Outlook 2003 to handle our emails at the office as well as calendaring and task lists. On one of our computers, calendar entries and invites to others will get stuck in the outbox from time to time. Doing a manual send/receive does nothing to clear up the problem. Regular emails will get clogged up and stuck behind the calendar entries. If we clear out the calendar entries, regular email operation resumes.





We are using POP3 services, not an exchange server. Our antivirus software is fully updated and we regularly run spyware scans.|||On the affected computer, in Outlook, go to 'Tools, Email Accounts.' The radio button should already be on 'view or change existing e-mail accounts, if not, choose this option and click 'Next.'





This will give the list of processes for email. Normally, you will have internet email, it may be listed by the mail server name or just be called 'internet mail.' I suspect that the problem is that you have an additional entry there, possibly something like a fax service. Compare what is listed here with another computer that does not have the problem and make any changes necessary.





Before you remove an item from this list, make notes about the configuration, in case the entry is one that later determined to be not causing the problem.