"1 Messages in Outbox" error

Whenever I close emClient I get an error saying “1 Messages in Inbox. Do you really want to close the application?”

There is nothing in my outbox. Is there any way to fix this? TIA

It is most likely in the Outbox of Local Folders. If local folders are not visible go to Menu > Tools > Settings > General , and tick Show local folders.

Many thanks indeed - that did it!