Welcome to FlyerTalk armis !
Since this isn't really a BT kind of post, I'm moving it to Travel Technology forum.
That said, you did a no - no, and cross posted your query in two different forums, so you may find that a moderator may lock one of the threads.
And as sobore pointed out, the first obvious thing is to check the Trash folder of your email - that is where deleted items generally go, and even Yahoo mail will keep it there for a while before deleting it permanently.
EmailKid
Budget Travel moderator