[horde] Latest Gmail app / Android update seems to break ActiveSync with Horde

[Sebastian Arcus]

Just a heads up that latest Android and/or Gmail app update seems to 
break ActiveSync connection to Horde. I have reports so far of 4 phones 
of different brands - Samsung and Xiaomi - on Android 12 and 16 
respectively - which have all developed similar symptoms in the last 
week or so. They are connected to 2 different Horde instances - both on 
version 5.2.21. The emails and contacts endlessly reload again and 
again. I have tried to clear the cache and storage for the Gmail app. 
Also deleted and reconfigured the accounts on the phone. The main error 
message I can find in the Horde logs is the one below - which might or 
might not be connected to this:

2025-11-19T14:33:03+00:00 ERR: HORDE Returning HTTP 400 while handling 
Find command. Error is: Find not supported. [pid 351 on line 160 of 
"/srv/lighttpd/mail.mydomain.co.uk/horde/rpc.php"]

Just wondering if anyone else has encountered this?