That said, the server fully supports xep-0313, which perhaps among other things control messages being kept on the server precisely for the purpose of sending them to all registered devices, thus allowing the sync.

But perhaps there's a policy in place removing the messages from the server as soon as some device has gotten it, leaving only online devices with the ability to grab them. I don't know if that's possible...

I experimented getting a device offline for a couple of minutes, and then exchanged messages with another account, and also to my same account. Then eventually I got the device offline, and none of the messages, not even the ones sent to myself, were ever synced on the device just coming online...

This is really sad, since that's precisely one of the benefits of having servers over peer to peer solutions, it's easier to sync devices through the server.

Might this be some sort of policy to keep disk usage on the server low?

I might need to explore some other server if that's the case...

Thanks !

Edit: Communicated with the admin, and they mentioned this was unexpected.

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[–] poVoq 2 points 7 months ago (1 children)

You need to tell us with clients and if possible which server. It should usually not happen, but some outdated clients do exhibit similar issues.

[–] kixik@lemmy.ml 1 points 7 months ago* (last edited 7 months ago)

On the office laptop an my PC (both running artix gnu+linux) I'm using dino and on the phone (lineageos for microg) I'm using conversations.

[–] poVoq 1 points 7 months ago (1 children)

You could try to see if your account settings are defaulting to message archiving. In Gajim for example you can do that under Accounts Menu -> Advanced -> Archiving Preferences

[–] kixik@lemmy.ml 1 points 7 months ago (1 children)

Dino neither Conversations offer anything about archiving preferences.

[–] poVoq 1 points 7 months ago (1 children)

Not sure about Dino, but in Conversations it should be in your account details, top right three dot menu, then archive settings as always.

[–] kixik@lemmy.ml 1 points 7 months ago (1 children)

archiving preferences -> Server-side archiving preferences?

Never
Contacts
Always Is that the one? Setting it to Always would help? Is this the one?

And on the dino side, on preferences there's almost nothing to configure, and on acocunts, I see nothing that can be configured. I can only add/remove accounts...

[–] nicocool84@sh.itjust.works 2 points 7 months ago

"Always" is the good choice yes, and dino is gnome-philosophy-compliant: "do not expose too many settings".

Some additional info: your server admin may have set the server-side archiving policy to a very short time or even disabled it all together. Also, this Conversations setting only applies to direct chats. For groups it's up to the group owner to enable or disable server-side archiving (it's on by default in most modern implementations).