Can't see if mail has been sent

When i send a mail I can’t see under SENT that it has been sent, no trace of it
So I tried againg- but no. The the recipient asks me why I sent so many mails. Obiously it works but it would be a good thing if I could see that it has been sent, otherwise I can’t be sure
Tommy/ Sweden

This sounds as if the message is stuck in the Outbox.

Go to Menu > Settings > General, and make sure that Show Local Folders is selected.

Go to the Local Folder Outbox, and delete the message.

The reason why it was not able to be sent correctly will be in Menu > Operations, then as an SMTP error in the Log tab.