No error message?
If there is an accumulation of messages in the Outbox folder, open
the Outbox folder. Move as many of those messages as you can to
the Drafts folder. If any message can't be moved or deleted, apply this Microsoft fix:
No error message?
If there is an accumulation of messages in the Outbox folder, open
the Outbox folder. Move as many of those messages as you can to
the Drafts folder. If any message can't be moved or deleted, apply this
Microsoft fix: