Outbox shows empty but send/receive wants to send 5 files

[snapuphere]

Send recieve notifier always showing outlook wants to transmit 5 files. The
outbox is empty. Has anyone exper. this problem or have a fix?
Thank You

 

[K. Orland]

These are probably stuck read receipts:

http://www.howto-outlook.com/howto/deletereadreceipt.htm