I have an issue that is stumping me. Since applying the 6.0.1 Update my email app is no longer synching with the host server.
Let me explain what I mean by sync so there is no confusion. I use POP3 with Cablevision (Optimum.net) and have always had 2 accounts on my various Android devices. By various I mean different phones over the years. (All Android.)
During the daytime hours I work from home and have both a work laptop and home PC. These accounts show up on my home PC which is my primary email station. IE: This is where I save mail I want to keep in private folders. I use the email app on my Galaxy Note 5 to read email that arrives when not at home.
If I delete from my Galaxy Note 5, it does indeed still delete the email from the Optimum Server. But if I boot up my PC and lets say I have 50 emails between accounts which I then clean up. My Optimum account (verified by using Web Access) has ZERO emails in it. But if I look at my phone it will continue to show all the 50 that came in overnight. If I slide the phone screen to sync, all 50 remain on the phone unless I delete them all a second time.
It worked fine up until the Marshmallow Update. Again, using POP3, not IMAP.
Thanks,
Jeff