Jabber Message unknown protocol

[Lemming]

Hi,

i'm currently testing Zabbix 3.0.2 on Debian 8 by using the zabbix-repository. Sadly sending messages via my own jabber-server (prosody 0.9.10) using a letsencrypt-certificate fails.

The log of zabbis states:

Debug-Log on my jabber-server:
...

[k.rink]

Folks;

slowly starting into zabbix 2.4.6, I fail pretty early by trying to set up notifications via Jabber. Setup: We use zabbix as well as an openfire 2.x XMPP server in a local network. There's a DNS SRV entry for the XMPP server, and there is a user that can send messages through....

[foobar]

Задача такая. Есть файл (вообщето с логами, но от это...