Re: [Evolution] [ews] EWS throttling

[Martin Kelly <mkelly xevo com>]

On Thu, 2017-06-22 at 11:40 +0200, Milan Crha wrote:
>       Hi,
>
> On Thu, 2017-06-22 at 10:02 +0100, Pete Biggs wrote:
> > I would be disappointed if Evolution were to embrace that
> > particular
> > Outlook feature!
>
> I agree.
>
> > Can you give some form of feedback saying something like "Download
> > Paused by Server" and some form of indication how long left to
> > wait?
>
> Yes, that's possible, for the message in the status bar, which can be
> eventually cancelled by the user. There will be some caveats for
> sure,
> but if some brave testers would be found...
>
>       Bye,

Another thing to note here is that, if we don't backoff, the user
experience is for the sync to error out with a cryptic message about
the server not being available. I don't think this is much better than
saying something about "server has stalled." I think the ideal thing is
to somehow proactively ask the server for policy and adjust accordingly
so that we never hit throttle limits. However, I don't know the
Exchange protocol and thus don't know if that kind of thing is
possible.