$ telnet cromulent.colobox.com 25
Trying 66.220.1.247…
Connected to cromulent.colobox.com.
Escape character is ‘^]’.
220 cromulent.colobox.com BSDI BSD/OS 2.0 Thu Feb 23 13:09:18 MST 1995 i386 ESMTP

See also: apache_rand_server.patch