Backported sendxmpp 1.14-1 from intriped to see if this would solve the problem and is not caused by libnet-xmpp-perl (or another package). With version 1.14 both issues are solved.
Backported sendxmpp 1.14-1 from intriped to see if this would solve the problem and is not caused by libnet-xmpp-perl (or another package). With version 1.14 both issues are solved.