Messages stuck in outbox on Outlook

Problem

Emails sometimes get stuck in your outbox in Outlook.

Cause

1. A message can get stuck if it includes an attachment that’s too large for some email servers to handle.
   (For example, your workplace /email providers might limit the size of email messages you can send or receive.)
2. Sometimes Outlook can’t send your messages because your email server is off-line or your mail client (you) are offline.

Solution

Put Outlook in off-line mode and delete the offending email.

To do this go to

1. Click File-> Work Offline.
2. Restart Outlook.
3. Delete the offending E-mail.
4. Put Outlook back into on-line mode by clicking File > Work Online.