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Emails (not spam) being rejected by mail server

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Emails (not spam) being rejected by mail server

I am an IT admin for my company, and we keep having legitimate emails being blocked by Comcast specificially.  We have no other issues with emails being blocked.

 

An error message I'm seeing is:  "<my IP> found on on or more DNSBLs" but when I go to look up my IP on ANY spam block databases, we are not listed at all.  There is very clearly a problem with Comcast receiving our emails, and it's very specific to Comcast.

 

 

Expert

Re: Emails (not spam) being rejected by mail server

Comcast security should be able to sort this out for you.  They handle any blocking issues---------------

 

Comcast Customer Security Assurance-------------------

Normal business hours (6:00 am to 2:00 am EST, 7 days a week)

1 - 888-565-4329



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