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...
timbertens
Dec 27, 2021Copper Contributor
Are all of your servers facing this problem hosted on Linode? Ours are.... If so, please submit a ticket to the friendly people at Linode too. I hope that if there are enough tickets they will reach to MS at a higher level that they currently have and it gets solved quicker
- AdvUserAdminDec 30, 2021Copper Contributor
timbertens I have contacted Linode multiple times on this issue. To be honest, I am disappointed with their response. It seems there is nothing they can do.
I'm also not really getting anywhere with Microsoft so far. Hopefully this issue is now being escalated.
- suportecwDec 30, 2021Copper Contributor9 days and Microsoft doesn't answered us... The problem persist and we can't do anything to resolve it =/
- AdvUserAdminJan 01, 2022Copper Contributor
suportecw Microsoft have advised their servers currenly will not accept email from any Linode IP addresses....
- AmityWeb2021Dec 27, 2021Copper ContributorNo my other linodes are sending mail via a php script to Microsoft ok. It’s just this one linode server I use for email accounts.