Email routing stats using MailHops

So far so awesome because I just love digging into stats. I just sifted through fifty emails just to see where the email I receive is being sent from. Really interesting nerd data collected so far. Here are just some of the mail servers being used:

aircel.co.in
amazonaws.com
cio.host
customer.io
emailowl
fiber.net
hotmail.com
live mail service
mail23.wdc03.rsgsv.net (mailchimp)
mailengine1.com (expression engine)
mandrillap.com
freesia.mktdns.com (marketo.com)
mcdlv.net (mailchimp)
mta.email.dunkindonuts.com
omp1027.mail.ne1.yahoo.com
penton.com
poney telecom eu
rightnowtech.com (oracle)
rs-aspn2.com (apnic.net)
socal.res.rr.com > mail.adminsites.com
spring-chicken-bh.twitter.com
static.webnx.com
verygoodserver.com
zdsys.com

Big shout-out to MailHops for being so cool: http://www.mailhops.com/