I use the Monal (3.0.2 / 274) XMPP client on an iOS 11.4 iPhone 8 – and was told the reason it disconnects when running in the background from Openfire 4.0.3, was because Openfire does not support XEP-0357.
Is this still true for Openfire 4.2.3?
We’re currently running 4.0.3.