1 Message
client emails being blocked by Comcast
Our clients with Comcast.net email address are being blocked from receiving our emails. Our domain is retirementsmarts.com. We are NOT flagged as SPAM on any online directory. Comcast is the only ISP blocking our emails. How do we get this resolved?
As financial planners it is imperative that our clients receive timely updates from us. It's almost impossible to contact our over 100 clients with Comcast email addresses and have them whitelist us. Again, Comcast is the ONLY ISP blocking our emails. Need this resolved ASAP.
Thomas [Edited: "Personal Information"]
CCJodie
Problem Solver
•
1.3K Messages
2 years ago
@user_c8338e Hey there, we can look into this for you. Before we can see how we can help, do you have your own Comcast email with us we can test out?
0
0
XfinityAlex
Official Employee
•
930 Messages
2 years ago
@user_c8338e It appears this is a DNS issue on your side of things. Our systems utilize DNSSEC to evaluate DNS data. If I perform a lookup as the MTAs do, we get a "SERVFAIL" (for example: dig -t MX retirementsmarts.com). However, if we disable the DNSSEC checking (dig +cd -t MX retirementsmarts.com), we do see results).
It's not just our systems that are having issues: https://dnsviz.net/d/retirementsmarts.com/dnssec/
We have a policy that all sending domains (RFC5321) must resolve to some subset of DNS records. At this point, we can't resolve anything at all for that domain. Please let me know if we can provide more information.
0
0