*   Trying 87.254.190.35:2500...
* TCP_NODELAY set
* Connected to demo.kvarta.net (87.254.190.35) port 2500 (#0)
< 220 192.168.2.109 ESMTP server ready.
> EHLO kvarta
< 250-192.168.2.109 Hello kvarta; ESMTPs are:
< 250-TIME
< 250-SIZE 0
< 250-AUTH CRAM-MD5 LOGIN
< 250-AUTH=LOGIN
< 250 HELP
> AUTH CRAM-MD5
< 334 PDEzOTU4OTQ0NTMuMzQ2QGxvY2FsaG9zdD4=
> ZGVtbyAxNmMzODVkZmQ3ZTA3MWI4ZTVjOTVlZDBlM2EzOTBjMg==
< 501 Authentication failed - bad user or password.
* Closing connection 0