Friday, November 26, 2010

Facebook's new email service uses Spamhaus

$ host -t mx facebook.com
facebook.com mail is handled by 10 smtpin.mx.facebook.com.

# So then I ran a quick telnet to port 25 from my home laptop on home RoadRunner internet service

$ telnet smtpin.mx.facebook.com 25
Trying 66.220.155.13...
Connected to smtpin.mx.facebook.com.
Escape character is '^]'.
554 5.7.1 POL-P1 http://www.spamhaus.org/query/bl?ip=
Connection closed by foreign host.