Spam Resource: Comcast.net has new sending IP addresses

Al Iverson just released a new insightful blogpost on Spam Resource:

American multinational telecommunications conglomerate Comcast, most well-known to us Internet users here in the US as the provider of cable modem-based internet service Xfinity, has announced that they’ll be sending outbound mail from subscribers via new (additional) IP addresses ranges.On the Mailop list, a representative from Comcast shared that the new IP ranges are as follows:ip4:96.103.146.48/28 ip4:96.102.19.32/28 ip4:96.102.200.0/28ip6:2001:558:fd01:2bb4::/64 ip6:2001:558:fd00:56::/64 ip6:2001:558:fd02:2446::/64These are indeed included in the comcast.net SPF record.

Read more here: Comcast.net has new sending IP addresses