I’ve just set up my new MIAB and I must say it seems to be superb so far. However, I have one (fairly major) issue; I can’t send email to Office365.
When I do I get a bounceback with this error:
anoffice365domain-com.mail.protection.outlook.com[18.104.22.168] said: 550
5.7.606 Access denied, banned sending IP [MY MIAB IP ADDRESS]. To request
removal from this list please visit https://sender.office.com/ and follow
the directions. For more information please go to
http://go.microsoft.com/fwlink/?LinkID=526655 (AS16012609) (in reply to
RCPT TO command)
If I go to the URL and request that the IP address is delisted it says it might take up to half an hour. When I try again an hour or so later, I get the same error.
I’m using a Digital Ocean droplet and my box is new (set up about 24 hours ago).
Does anyone know of another way to get onto Microsoft’s Office365 whiltelist (or off their blacklist)?