$ telnet mail.mpt.sk 25
Trying 46.28.109.204...
Connected to mail.mpt.sk.
Escape character is '^]'.
220 mail.mpt.sk ESMTP Postfix (Ubuntu)
EHLO mail.mpt.sk
250-mail.mpt.sk
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
MAIL FROM: <mpt@mpt.sk>
250 2.1.0 Ok
RCPT TO: <mpt@mpt.sk>
250 2.1.5 Ok
DATA
354 End data with <CR><LF>.<CR><LF>
Subject: Test

Mesage Body
.
250 2.0.0 Ok: queued as 207E047328
quit
221 2.0.0 Bye
Connection closed by foreign host.