Hello, this problem is driving me mad and I am at the point where I give up with Thunderbird What's happening is "random" emails go into the outbox and stay there, I have no choice but to delete them. There is no rhyme or reason for this. The majority of emails send, even to the address that will randomly stay in outbox. !! I have deleted the account and reinstalled it, used the same settings that are on another account that I don't have a problem with. I am using android on galaxy tablet. Anyone have any ideas Thanks