Having a problem making Outlook send email?

Causes we're aware of include:

  1. An add-in that marks items read if you view the Outbox. See http://www.slipstick.com/problems/outbox.htm for more information. 
  2. Not authenticating properly with the mail server. Check your account settings.
  3. No default email account set. This is may happen when you use a preconfigured script provided by the mail server administrator.
  4. Using a program that access the pst or ost data, such as MSN Desktop Search. Reboot and disable the search before starting Outlook to make it work.