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Outbound Mail Servers
Below are Comcast's outbound mail servers:
| Host | IP Address |
|---|---|
| resqmta-a1p-077435.sys.comcast.net | 96.103.146.51 |
| resqmta-a1p-077436.sys.comcast.net | 96.103.146.50 |
| resqmta-a1p-077437.sys.comcast.net | 96.103.146.56 |
| resqmta-a1p-077438.sys.comcast.net | 96.103.146.52 |
| resqmta-a1p-077720.sys.comcast.net | 96.103.146.54 |
| resqmta-a1p-077721.sys.comcast.net | 96.103.146.58 |
| resqmta-a1p-077722.sys.comcast.net | 96.103.146.55 |
| resqmta-a1p-077723.sys.comcast.net | 96.103.146.57 |
| resqmta-a1p-077724.sys.comcast.net | 96.103.146.53 |
| resqmta-a1p-077725.sys.comcast.net | 96.103.146.59 |
| resqmta-c1p-023461.sys.comcast.net | 96.102.19.42 |
| resqmta-c1p-023462.sys.comcast.net | 96.102.19.34 |
| resqmta-c1p-023463.sys.comcast.net | 96.102.19.36 |
| resqmta-c1p-023464.sys.comcast.net | 96.102.19.43 |
| resqmta-c1p-023465.sys.comcast.net | 96.102.19.37 |
| resqmta-c1p-023832.sys.comcast.net | 96.102.19.41 |
| resqmta-c1p-024060.sys.comcast.net | 96.102.19.35 |
| resqmta-c1p-024061.sys.comcast.net | 96.102.19.38 |
| resqmta-c1p-024062.sys.comcast.net | 96.102.19.39 |
| resqmta-c1p-024063.sys.comcast.net | 96.102.19.40 |
| resqmta-h1p-028587.sys.comcast.net | 96.102.200.11 |
| resqmta-h1p-028588.sys.comcast.net | 96.102.200.10 |
| resqmta-h1p-028589.sys.comcast.net | 96.102.200.6 |
| resqmta-h1p-028590.sys.comcast.net | 96.102.200.8 |
| resqmta-h1p-028591.sys.comcast.net | 96.102.200.9 |
| resqmta-h1p-028592.sys.comcast.net | 96.102.200.5 |
| resqmta-h1p-028593.sys.comcast.net | 96.102.200.7 |
| resqmta-h1p-028594.sys.comcast.net | 96.102.200.2 |
| resqmta-h1p-028595.sys.comcast.net | 96.102.200.3 |
| resqmta-h1p-028596.sys.comcast.net | 96.102.200.4 |
| resdmta-a1p-077302.sys.comcast.net | 96.103.146.60 |
| resdmta-a1p-077303.sys.comcast.net | 96.103.146.61 |
| resdmta-a1p-077741.sys.comcast.net | 96.103.146.62 |
| resdmta-c1p-023852.sys.comcast.net | 96.102.19.44 |
| resdmta-c1p-023853.sys.comcast.net | 96.102.19.46 |
| resdmta-c1p-023854.sys.comcast.net | 96.102.19.45 |
| resdmta-h1p-028482.sys.comcast.net | 96.102.200.12 |
| resdmta-h1p-028597.sys.comcast.net | 96.102.200.13 |
| resdmta-h1p-028598.sys.comcast.net | 96.102.200.14 |
| IPv6 Outbound CIDRs | |
| 2001:558:fd01:2bb4::/64 | |
| 2001:558:fd00:56::/64 | |
| 2001:558:fd02:2446::/64 | |
| MDP CIDRs (Bulk Messaging Platform) |
|---|
| 96.114.127.0/27 |
| 68.87.28.32/27 |
| 2001:558:fe14:76:68:87:28:0/120 |
| 2001:558:fe21:39:96:114:127:0/120 |
This page was designed to address questions on the following topics:
All policies and thresholds on this page are subject to change. This site will be updated when such changes are implemented.
