mariotheplumber,
As requested I will post my problem here as well.
I spent some time on the problem yesterday, far worse, interesting, and concerning than I originally thought.
Equipment info:
Using Apple Mail to download mail from Verizon carrier.
Use 4 machines 3 of which are set to leave messages on Verizon main server, desktop set to remove from server.
Mac 27 late 2013 desktop running Yosemite 10.10.5
Macbook Pro running Mountain Lion seldom used for mail
iphone 5S ( model ME343LL/A ) ( modem firmware 6.01.00 ) purchased Feb 2014 ( important ) running IOS 9.2 ( 13C75 )
Mac Mini4 ( model MGNR2LL/A ) ourchased Sept 2015 ( important ) running IOS 9.2 ( 12C75 )
Neither the MacPro laptop nor the desk exhibits the problem described below!
BOTH Mini and iPhone exhibit exact same problem and only started exhibiting same AFTER upgrade to 9.2 from 9.0 ( I do not believe I upgraded to 9.1 choosing to wait for 2nd cycle upgrade )
PROBLEM:
ALL, by ALL, I mean ALL emails DELETED from Mini and iPhone back to the ORIGINAL day of startup of use of each device are redownloaded after deletion back to those machines. Actual email is routinely deleted from primaryVerizon mail server daily!!! Email returns to mini back to SEPT 2015, to iPhone back to FEB 2014.
Spam email contain ONLY header and subject doesn't download body. Contact emails contain full body of messages including attachments.
I have tried it all pretty much from deleting various ways clearing them from trash immediately, rebooting device etc etc etc with no effect. The next time I call for new mail I get EVERY mail that was ever received BY THAT DEVICE. The mail downloaded to iPhone goes all the way back to 2/2014 by Mini to 9/2015 so not downloading all my email ( been using apple mail I would guess about 7 or more years ) just the email called for on the device!!!
Okay I have the obvious problem of downloading HUNDREDS and HUNDREDS of email if I delete them, every time I call for mail. If I don't delete them have problem of having HUNDREDS of emails on device at all times. If I delete them and leave them in trash re-downloads them to inbox no matter.
The other SERIOUS concern is, where are these emails being downloaded from and hence preserved at. I do not believe at Verizon
George in NY