Rover1 <[email protected]> writes: > I can sync manually when not on WiFi. Android Pie didn't originally come > on the phone, but was updated several months ago. It didn't affect K-9 > Mail though. > > I'm not sure what you referred to when you wrote "... what your settings > are, and what the OS settings for background sync and the app are." > > Here are some: Global Settings/Network/Background sync- "When 'Auto-sync' > is checked. "Auto sync personal data" in Android Settings is On. > > In the app, Account Settings/Fetching mail/ Sync messages from - anytime > (no limit); Fetch messages up to 32Kb; Folder poll frequency - Every 15 > minutes; Poll Folders - Only 1st Class folders; Push folders - All. > > I could list them all, but I'm not sure what you are looking for.
Did you have any kind of OS update around the time of problems? The settings I mean are in the settings/applications. For each app, there are controls over what it's allowed to do. This is different in every flavor of android -- my example will be for LineageOS, which is very close to AOSP. I am unfamiliar with Samsung's variant. On the home screen with K-9, long press, and see the popup with edit, widgets, and app info. Select app info. (Really, you can get there from settings.) On that screen, tap "Data Usage". Look at Foreground and Background. If Background is 0, that's a huge clue. Then, look at wifi, cellular and background. All should be on. Then "unrestricted data usage" is probably off. But seeing unrestricted, one wonders if your phone is in restricted mode because of high usage, and what the warning and limit amounts are in cellular settings. Look in Settings, Network, Data Usage and see if Data Saver is on. Also look at data used, warning and max. Are any other apps not doing background sync when you expect them to? Are any successfully doing background sync? You might try seeking help from Samsung or a forum about your particular phone. Another thing to do is set up adb (via the android development environment) and look at the logs. I am 99% sure that k-9 would log why it is not syncing, and in this case I'd say 90% it's because the OS has denied background mobile data. (Implicit in this message is the notion that it is highly unlikely you are dealing with a k-9 bug, but more likely an interaction of complicated, perhaps nonstandard, android settings theoretically intended to help you, against a backdrop of typical apps that are really malware, acting in their author's interest and against yours. K-9 is not such an app; it behaves well in my experience!) -- You received this message because you are subscribed to the Google Groups "K-9 Mail" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/k-9-mail/smumujczp2i.fsf%40linuxpal.mit.edu. For more options, visit https://groups.google.com/d/optout.
