dmitryg@q2dog25265:~$ telnet 82.208.88.132 25
Trying 82.208.88.132...
Connected to 82.208.88.132.
Escape character is '^]'.
220-mailserver.sverdlova.ru Sverdlova
ehlo linux
220 mailserver.sverdlova.ru Sverdlova
250-mailserver.sverdlova.ru
250-PIPELINING
250-SIZE 73400320
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-SMTPUTF8
250 CHUNKING
quit
221 2.0.0 Bye
Connection closed by foreign host.
dmitryg@q2dog25265:~$ telnet 193.228.231.7 25
Trying 193.228.231.7...
Connected to 193.228.231.7.
Escape character is '^]'.
220 mailserver.sverdlova.ru Sverdlova
quit
221 2.0.0 Bye
Connection closed by foreign host.