How do I remove linode assigned IP from Hotmail's block list?
Hotmail mail servers suggest I contact our ISP; also contacting Comcast, but since it is probably the I paddress that has a bad reputation… can Linode help w/ this?
l...firstname.lastname@example.org (expanded from m...email@example.com): host
hotmail-com.olc.protection.outlook.com[220.127.116.11] said: 550 5.7.1
Unfortunately, messages from [18.104.22.168] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to
[DB3EUR04FT021.eop-eur04.prod.protection.outlook.com] (in reply to
MAIL FROM command)
Support can help with delisting from Microsoft. All you need to do is open a support ticket. To be transparent - while we will try to work with Microsoft on delisting requests, it is their platform and their decision is final on what actions they take. We usually see some initial pushback, which we push against ourselves, making most requests we make get delisted. We cannot guarantee a delisting, though.