Hello, We're currently having some major issues with our IPs being blacklisted by Microsoft. I'm signed up for the SNDS and a huge amount of our IPs are "blocked due to user complaints or other evidence of spamming".
It's fairly easy to have the IPs delisted by filling out the "Sender Information for Outlook.com Delivery" form that Microsoft provides. However, that only allows up to a /24 to be delisted at a time, which means it is going to take a very long time to delist all of our ranges. Also, that doesn't actually address the underlying issue. Obviously spam isn't being sent from all of those IPs, but there has to be some reason Microsoft is listing them all. Is this something anybody here has experienced? Better yet, is there somebody from Microsoft who could have a quick look at this and give me some insight into the underlying issue? I've been attempting to contact Microsoft for a while now and only ever get canned responses (if at all). Any tips or help would be greatly appreciated, thanks. Kind regards Bastiaan van den Berg Hetzner Online GmbH _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
