1. $ telnet relay.plus.net 25
  2. Trying 212.159.8.107...
  3. Connected to relay.plus.net.
  4. Escape character is '^]'.
  5. 220 avasout06 smtp relay.plus.net
  6. EHLO mymac.mydomain\.co\.uk
  7. 501 EHLO requires valid address
  8. RSET
  9. 250 OK
  10. HELO mymac.mydomain\.co\.uk
  11. 501 HELO requires valid address