[horde] ActiveSync testing latest release

[Ralf Lang]

Hi all, we will take some additional days for the stable release so we can
properly handle issue #41 before.
Torben and I worked on #41 but there's still some angles to address.

On Fri, Jun 5, 2026 at 9:34 PM Torben Dannhauer <torben at dannhauer.info>
wrote:

> Hi Brent & Mike, Hi All,
>
> I had a productive session today. Indeed that was a bug in the email
> handling.
> But not a typo one, but a severe architectural one, affecting the sync
> stability in all ActiveSync protocol versions with emails.
>
> I had the same symptoms in my test as I used my live account with 15GB
> mail data. It ended up in syncing loops, unresponsive/crashing iOS mail app
> and creating tons of logs.
>
> Especially on initial syncs with large boxes new emails may arrive while
> syncing, but also with larger imap operations causing batched ActiveSync
> changes, the old code ended up in MODSEQ changes on imap level not properly
> digested in ActiveSync causing endless loops. Those created high load and
> unresponsive email app on the mobile devices, no progress in sync and tons
> of logs on the server side.
> The load on the device might also make the download of contacts etc. very
> slow, so please retry for contacts, calendar, notes, tasks and emails
> separately.
>
> Also stalling the sync process can be caused by larger, imap operations
> causing batched ActiveSync changes as described by Brent.
>
> after my fix, my iPhone behaves well now. I would like to get your
> feedback, also Android I cannot test .
>
> the PR is: https://github.com/horde/ActiveSync/pull/41, it will be
> reviewed in the next days by Ralf. I would appreciate if one of you dares
> to switch the installation from -dev-FRAMEWORK_6_0 to the branch in the PR
> - just for horde/ActiveSync. That is enough to test my fixes.
>
> please ensure, that if you proceed testing, disable the account on your
> mobile device, reset the ActiveSync state in the ActiveSync admin page for
> that device and then enable step by step the different parts of ActiveSync:
> contact, calendar, notes, tasks and email.
>
> Looking forward for your feedback and thanks for helping!
>
> Torben
>
>
> -----Ursprüngliche Nachricht-----
> Von: horde <horde-bounces at lists.horde.org> Im Auftrag von Brent
> Gesendet: Freitag, 5. Juni 2026 15:05
> An: horde at lists.horde.org
> Betreff: Re: [horde] ActiveSync testing latest release
>
>   14.1 seems to be stable on the current compost build; well, as stable as
> it has been. I dunno if there's changes in the latest codebase for 14.1 or
> not.
>
> There are occasions where if/when the user makes a LOT of changes to their
> mail folders (creating new folders, moving folders, renaming a bunch..all
> in the web ui), then sometimes I need to remove and re-add the setup on the
> phone as it stops syncing for some reason. I've not debugged it as it
> happens infrequently and is easy to just reconfigure the phone.
>
> brent
>
> Quoting Mike <barjunk at attglobal.net>:
>
> > But in the latest release, 14.1 is working for you?
> >
> > Or do you mean you reverted your install?
> >
> > I haven't tried 14.1 in the latest install.
> >
> > Mike
> >
> > Quoting Brent <impuser at bitrealm.com>:
> >
> >> I tried 16.0 but had to revert. I didn't have device logging turned
> >> on, but I had users stop seeing mail folders being updated; plus,
> >> http hits to the Horde server really increased with phones "pinging"
> >> the server every 2 seconds. This also led to some phones showing 30%
> >> usage of the Mail client (built-in Apple Mail using
> >> ActiveSync) in a single day. A normal usage might be 2% running in
> >> the background.
> >>
> >> I need to run something in dev and try to link a test user to it in
> >> order to get useful logging. I'm back on 14.1. The per-user setup
> >> that was posted doesn't seem to work if using Imp as an
> >> authentication backend. It appears that Horde must be the
> >> authenticator, then I could define per-user ActiveSync versions.
> >> Using IMP, it appeared to be one setting for all.
> >>
> >> brent
> >>
> >> Quoting Mike <barjunk at attglobal.net>:
> >>
> >>> Has anyone tried using ActiveSync yet besides me?
> >>>
> >>> Mike
> >>>
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