Is there a way to sync my chats across sessions while using prosody?

Question

I am trying to setup my own prosody severer. I am using two clients (Pidgen/WinX and Xabber/Android). I am noticing that messages that I send to a contact appear only in that session. While replies from my contact appear on all sessions.

Is there a way around this? Is this a server issue?

Answer 1

I discovered that this feature is dependent on both the server and the client. The server and the client need to implement XEP-0280 protocol ("Message Carbons").

• Pidgen does not support this feature.
• The Xabber Beta android app supports it.
• Gajim supports this extension.
• On the server side, we had to include mod_carbons.

Answer 2

As you already wrote yourself, there's XEP-0280 (Message Carbons), but you would might want to have Message Archive Management (XEP-0313) as well, which is mod_mam for Prosody.