Why is Microsoft IP delisting not working?
Summary
What email marketers say6Marketer opinions
Email marketer from MXToolbox explains that a potential solution is to use the MXToolbox tool to view your current status. They may be able to resolve the reason behind the block.
Email marketer from Reddit shares that they had to wait several days and try multiple times before their IP was successfully delisted from Microsoft's blocklist.
Email marketer from Spiceworks shares to check that the DNS is correctly setup and fully propagated. Old cached DNS may be the reason the email is being bounced back.
Email marketer from Stack Overflow discusses checking the IP address against various blocklists to see if it is listed on more than just Microsoft's, suggesting a wider reputation problem.
Email marketer from Microsoft Community responds that temporary issues with the delisting portal are common, and Microsoft recommends waiting 24 hours before retrying. It could also indicate a problem with the IP's reputation.
Email marketer from Email Geeks shares that the Microsoft delisting issue occurs intermittently.
What the experts say3Expert opinions
Expert from Email Geeks offers to help delist an IP address at Microsoft and confirm if the issue is global.
Expert from Word to the Wise explains that Microsoft’s filtering is complex and depends on more than just IP reputation. Factors such as content, engagement, and user complaints play a significant role, and can cause delisting to fail even if the IP appears clean.
Expert from Spam Resource mentions that Microsoft’s delisting process is heavily influenced by the overall reputation of the sending IP. If the IP has a history of spam or low engagement, delisting may be delayed or denied regardless of current sending practices.
What the documentation says3Technical articles
Documentation from Microsoft explains the sender needs to adhere to all of Microsofts policies otherwise delisting requests may fail. This includes authentication standards and acceptable content guidelines.
Documentation from Microsoft SNDS explains that poor IP reputation, as tracked by their Smart Network Data Services (SNDS), can prevent successful delisting. Addressing the underlying issues affecting reputation is crucial.
Documentation from Microsoft Support explains that failure to delist an IP could be due to ongoing spam activity, an inaccurate IP address, or the IP address not meeting their requirements for delisting.