downtheroad wrote:
Open the Email app and display the main screen, such as the combined inbox.
Press the Menu button and choose the Settings command.
Choose Account Settings.
All the phone's e-mail accounts are listed.
Choose an e-mail account.
Touch the More Settings button.
Choose the Incoming Settings item.
If you can't find an Incoming Settings command, you're dealing with a web-based e-mail account, in which case there's no need to worry about the Server Delete option.
Beneath the item Delete Email from Server, choose the option When I Delete from Inbox.
The only other option besides When I Delete from Inbox is Never. If you see the Never option, choose the other one.
Touch the Done button.
OP, This is the correct way to deal with the problem. No need to disable email sync. Example.. In K9 mail on the S7, go to K9 Mail, settings and "Fetching Mail" and change the settings there to remedy your issue. You need to set setting(s) "Sync Server Deletions", When I delete a message" and Erase deleted messages on server".