>telnet smtp.somehost.ru 25
<- 220 smtp1.somehost.ru ESMTP Exim 3.14 #1 Sun, 6 Aug 2001 18:51:58 +0400
-> helo levong
<- 250 smtp1. somehost.ru Hello levong [192.168.0.22]
-> mail from: 
<- 250  is syntactically correct
-> rcpt to: 
<- 250  verified
-> data
<- 354 Enter message, ending with «.» on a line by itself
-> hi buddy! this is just a test!
->.
<- 250 OK id=11V4bh-0001at-00
-> quit
<- 221 Bye levong
>Connection closed.