>> Brian Small:

“[...] Are there alternatives that offer xmpp support? [...]”

openmailbox.org offers XMPP service with the same account, and you can get a paid account with them =)

I thought the Kolab Now service (old MyKolab) by @Kolab Groupware offered XMPP too, but I can't see that on their site.

Countermail offers XMPP too, apparently, and they have paid plans.