your friendly neighborhood deliverability guide since 2001
Mediacom Outbound Mail Servers
If you're the type who likes to whitelist IP addresses used for ISP outbound email traffic, here's an update for you, courtesy of the Mailop mailing list. Cable internet provider Mediacom has announced that they've brought two new mail server IP addresses live: 220.127.116.11, 18.104.22.168. This is in addition to their existing outbound mail servers located at 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11 and 18.104.22.168.