user@pc:~$ dig +short SRV _xmpp-client._tcp.gmail.com

20 0 5222 talk3.l.google.com.
20 0 5222 talk4.l.google.com.
5 0 5222 talk.l.google.com.
20 0 5222 talk1.l.google.com.
20 0 5222 talk2.l.google.com.

everything seems to be ok.  start kopete – add account – Jabber

basic setup -> jabber id: user@googlemail.com
Connection -> check “Use protocol encryption (SSL)” , “Allow plain-text password authentication“, “Override default server information: talk2.l.google.com Port:5223”