Forum Discussion
AmityWeb2021
Dec 22, 2021Copper Contributor
Trying to find help for 550 5.7.511 Access denied, banned sender
I run a mail server for many business clients of mine. Microsoft have blocked our IP address, so we cant send to Office365 email addresses. I get a bounce back saying: host cr-studio.mail.protec...
stefano-it
Dec 31, 2021Copper Contributor
Exaclty the same, my server is on linode. In the loop tryng to delist my server I got a message indicating that the ban is do to a rule by frontbridge.com
Wrote an email to postmaster @frontbridge.com but haven't received anything yet.
- AmityWeb2021Jan 01, 2022Copper ContributorThat’s interesting. One of my customers (also on linode) forwarded me same email about frontbridge rules also. My customer has no idea who frontbridge is neither do I. I only saw such an email once.
- AmityWeb2021Jan 01, 2022Copper ContributorHas anyone got this issue on non-Linode servers? It seems everyone is on linode.
- MiaTomJan 18, 2022Copper Contributor
Hi, just reading this post, as I am having same issue since 24 December 2021, and using Linode
- shirroJan 20, 2022Copper Contributor
Has there been any news on if there is a class action or anti-trust action being initiated over Microsoft blocking a competing hosting provider?