Forum Discussion
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 One of my support cases has been escalated, and I have been asked for confirmation if I see the error only while sending emails to accounts hosted on Office 365 or even to other Microsoft domain accounts like Hotmail, Outlook, Live and MSN.
No news from Linode support either
If this issue takes a long time, I will consider moving the mail servers to another provider.
I'm redirecting mail traffic through an external smtp service for now.
Fede-9139 My linode and skyfibre ip addresses have been blocked randomly via MS plaforms. I can email my outlook account but can't email various custoemrs on Office365 ... the block is random by MS mtas. I have Linode on the case for two weeks, have sent emails to delist@ms etc and lodged delist requesst via email and delist portal which says no ip is blocked. Also SDNS MS service shows all ips are good to go.
Can MS be so incompetant, is there a turf war on against Linode or is this the reason why we need to pursue anti-trust against MS for screwing us all?
Grrrr.
- I think microsoft is so great that those who can actually order a solution to the problem don't even know what's going on.
Microsoft's postmaster support seems to be an endless bureaucratic hierarchy of contractors who do copy&paste every day.
I hope the escalations team are really human beings 🙂
