E-Mail app syncs Exchange account randomly although frequency set to never
I have set up a Microsoft Exchange account in the standard E-Mail app on my Galaxy S4 4.3 (Google Edition Jamal v2 final). Sync is on and E-Mails, Calendar and Contacts are checked for syncing.
As long as I am not traveling I have set up the "Inbox check frequency
" to "never
". This normally prevents the E-Mail app from synching my E-Mails.
But at random times it suddenly just starts to sync my E-Mails. It is like 1 or 2 times per day. I can not find out what exactly leads the app to sync my E-Mails although I have set the frequency to never, but it happens mainly during usage.
I experienced the same bug with my Galaxy Nexus, which I had before.
Note: When I open the E-Mail app manually it syncs the E-Mails just as it should.
Does anyone have experienced the same bug?