I don't talk about a "real" server trash folder sync. I can say it works on the standard email app, not on yours (or i don't know how).
One last try: the inbox on phone and server are identical always, but the trash/deleted folder on the server and phone are NOT identical, because this does not work with POP3 (right?).
If i delete a mail on the server, at the next AquaMail-Sync the mail is just gone from the inbox and not switching too trash folder.
Until now everything is how should be, now we get to that what i want and how it works in the standard e-mail app:
I delete a mail on my phone -> the mail on the server switches to the trash folder AND switch to the trash folder on my phone too.
But this is not a real server folder sync. Because if I delete the mail completly from server (for example with the pc), the mail is in the trash folder right now, so i empty the trash folder, then the mail is gone from server, BUT NOT on my phone. The phone doesn't care about that, the deleted mail stays in the trash folder on my phone. So that means, in the trash folder on phone are ONLY mails which i deleted directly on my phone.
I hope you understand me now, that was my last try. This is too much english for me and it fucks my brain xD
PS: Hopefully someday Hotmail will supports IMAP <_<