Thank you so much Dan! I had to replace my phone and even though I got the
same model, K9 was not syncing every hour as I had set-up - "Syncing
Disabled" message at the top. As soon as I completed the last step in your
list - Optimize uncheck - K9 started syncing and now tells me how many
minutes until the next poll. I don't remember having this issue when I
installed it years ago on my first Galaxy S7, but I'm so happy it is
functioning correctly now!
On Tuesday, April 17, 2018 at 7:27:42 AM UTC-6, Dan Christensen wrote:
>
> Here's a message I've posted multiple times to the list explaining
> exactly what settings made things work for me on a Galaxy S7. I haven't
> seen anyone say that they tried these exact settings and still had a
> problem. I've been using these settings for over a year now and they
> continue to work for me.
>
> Dan
>
> > 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 work fine:
> >
> > - 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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