Where do deleted emails go?

I think I have solved this and it was indeed a setting that was wrong, at least if I have really solved it.
I wanted to check all my settings before deleting the preferences and discovered that under the 'mailbox behaviors' tab I had not selected the Trash option.
I have now done that and told the mailbos to move deleted messages to a separate folder and to never delete them.
I think that if this is not selected the messages are simply destroyed when deleting them.
Right now messages are indeed moved to the trash folder and remain there in stead of dissapearing, so the signs are good.

mmmmmh I'm not sure I want that.
There is too much about Mail I don't like so this may be the straw that broke the camels back and I may decide to swap to another programme all together.
I've had issues with not being able to add different names and signatures as well.
I will have to think about this, thanks for the answers though.

Well without your suggestion I would never have found it anyway 😉
Thanks for giving me suggestions, if I can solve the problem with adding different sender names to my accounts I may be tempted to stay with macmail 🙂
Thanks again.

It did not go to the trash, some emails do, most don't.
They simply vanish after deleting.

It didn't help, I start wondering if perhaps I have somehow messed up the settings somewhere in such a way that I've told Mail to permanently delete certain messages and send others to the trashcan.