[AC Question]

Hello, I recently switched from an old Galaxy Note 2 to a J3 2016 and I have a problem syncing my e-mails :
Everything is syncing good, apart from the e-mails I delete on the mac, that still show up on the J3's inbox. It's driving me nuts, because I never changed the settings on the mac app, neither on the server side, and the auto config on the android used to work on my previous phone. I also rechecked on various forums (eg. http://www.imore.com/how-manually-set-icloud-mail-using-imap-and-smtp) the settings that should be made on the android app, but still no luck.
My settings :
phone : Samsung J3 2016
android : 5.1
phone mail app : "Email" stock app, same result on another tested app, "myMail"
me.com email adress (imap)
mac app : "keep deleted messages on the server" ticked and not ticked have the same result.

Thanks for your help !