Dear Dan,


many Thanks! 


The settings were good; for two times now the mails were retrieved so far. 

Unfortunately, there is a new problem: No sound notification, no LED, no 
status line notification. 

That is, I must activate the screen and open the app and see only then, if 
mails have arrived. This is the exact opposite to setting the energy saving 
... 

Can you give me a tip? Thank you very much!


Marietheres 

Am Dienstag, 25. April 2017 02:30:22 UTC+2 schrieb Dan Christensen:
>
> I had this problem ("Syncing disabled") after getting a new Galaxy S7, 
> and then upgrading from Android 6 to Android 7.  I did the following, 
> and things have been fine for about a week now: 
>
> - In k9 > Global Settings > Network > Background sync:  changed it 
>   from "Always" to "When 'Auto-sync' is checked.  This seems like a 
>   step backwards, but it caused syncing to start once when I tried it. 
>   It might be that it just causes k9 to reset itself in some way, 
>   so it might be irrelevant. 
>
> - In Device Maintenance > Battery, in the App power monitor section, 
>   make sure k9 is not checked.  (It was not.)  Also, added k9 to 
>   "Unmonitored apps", lower on that screen. 
>
> - In Device Maintenance > Battery > Battery Usage, selected Optimize 
>   battery usage from three dot menu, selected "All apps", and then 
>   turned off optimization for k9. 
>
> Note that the last two are separate settings.  I don't understand 
> why there are two different types of "doze", but I think many people 
> who can't solve this problem only adjust one of these settings, not 
> both. 
>
> Dan 
>
> PS: I'm getting excellent battery life, even with the above settings. 
> Android says that k9 is using only 0.08% of my battery per hour. 
>

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