Telnetlib in python not producing output?

Question

I'm trying to use the following script:

import telnetlib

server = telnetlib.Telnet('mail.optonline.net', '25')
server.write('EXIT\n')
print server.read_all()

However, it doesn't show anything (even if I remove the server.write). By the way, this is the way to exit the telnet server, by using EXIT (then enter).

Answer 1

SMTPLIB module from falsetru works perfectly. Thanks, falsetru!