U

Tuesday, December 5th, 2023 6:22 PM

Closed

550 5.7.1 Service unavailable, Client host [82.165.159.134] blocked using Spamhaus.

For some reason today certain emails are being returned undeliverable with the message in the subject line. Spamhaus site said only my ISP can have the blacklist removed. I don't do any marketing or spam-just work contact emails.

Gold Problem Solver

 • 

26.3K Messages

1 year ago

Please follow the instructions under the "Show Details" link on https://check.spamhaus.org/listed/?searchterm=82.165.159.134.

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

2 Messages

Thank you, turns out it was an issue with Ionos and not Xfinity. I didn't see the Show details on the bottom. 

Problem Solver

 • 

1.5K Messages

1 year ago

Are you running the mail server and actively rejecting spam (bouncing it)?  If you are, is this the admin account for your mailserver or postmaster alias? 

forum icon

New to the Community?

Start Here