$ telnet mail.cri.ch 25
Trying 84.16.68.123...
Connected to mail.infomaniak.ch.
Escape character is '^]'.
220 smtp2.infomaniak.ch ESMTP Infomaniak Network Relay Mail Servers; Tue, 12 Dec 2006 10:30:47 +0100
helo linux.infomaniak.ch
250 smtp2.infomaniak.ch Hello linux.infomaniak.ch [10.3.3.53], pleased to meet you
auth login
334 VXNlcm5hbWU6
aG9tZUBsdXJpYS5jaA==
334 UGFzc3dvcmQ6
NG1lMkxJVkU=
535 5.7.0 authentication failed
auth login
334 VXNlcm5hbWU6
aG9tZUBjcmkuY2g=
334 UGFzc3dvcmQ6
NG1lMkxJVkU=
235 2.0.0 OK Authenticated
quit
221 2.0.0 smtp2.infomaniak.ch closing connection
Connection closed by foreign host.