Exchange Sync Data Usage

[sliddington]

Hi Kostya,

I love Aquamail, thank you and I hope it financially rewards you for your efforts, you deserve it!

I recently noticed that Aquamail has used 200MB of background data in about a week which alarmed me because there isn't that high a volume of new email coming in. It was after switching to a new phone but it wasn't all at the beginning but mostly over 2-3 days with a linear increase over that period. I can't quite remember but I think I increased the sync frequency around that time from the default.

I reduced the sync frequency in special settings for the 2 exchange mailboxes that I have setup to 2 hours and 15 minutes (from 5 minutes for both) and it has slowed down the data usage so I suspect exchange sync downloads more data than it needs to.

So the question is what does it do for an exchange sync?

I have the exchange accounts set to 100 messages so would not expect more data than 100 headers (or something like that) plus any new messages to download.

I also have calendar sync turned on and there are 2 calendars but they don't change much either.

Thanks,
Simon

[mikeone]

I guess you are using Androide version 5.0.x or 5.1, right?

[sliddington]

Yes 5.0.2 on Sony Xperia Z3... no actually that happened before I updated to 5.

[Kostya Vasilyev]

@mike -- "mobile radio active" is battery stuff, and this is traffic stuff, totally unrelated.

@sliddington -- Exchange (EWS) is a very "verbose" mail protocol.

AquaMail uses compression there, but still... XML based if that means something to you.

And having the app check mail every 5 minutes has its price, even if there are no actual new messages, the app still has to "look in" your account on the server and see if something's changed.

[mikeone]

@Kostya : Okay,  understand.  Thanks for your rectification. 

[sliddington]

Fair enough, I'm a software engineer so get what you are saying and doesn't surprise me Microsoft would make something inefficient ;-)