I'd appreciate it if someone at Microsoft could get both mail.grapheneos.org IPv4 addresses removed from the SNDS spam list:
51.161.8.140 (static IP of the server)
51.222.17.218 (newly assigned floating IP so we can avoid dealing with this in the future by moving it around)
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No issues with any other providers because our server has never sent any spam and we've owned 51.161.8.140 for a while now. Microsoft's SNDS must have the IP blocks as a whole listed.
Standard contact form for getting this fixed hasn't worked. Not even an automated response.
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Didn't used to have this issue but the new IPv4 address of the server started out with the issue. I could swap the mail server with one of the other server instances to give it a new IPv4 address that's not banned.
However, I bought a floating IPv4 that I want to get unbanned...
The point of buying the floating IPv4 address is that once I get it unbanned from Microsoft's nonsense and anything else that's a problem, we can use it long-term across different VPS or dedicated server instances on OVH. If we had been doing that before, it wouldn't be an issue.
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I could waste some money buying more floating IPv4 addresses until I get one that Microsoft thinks is okay but I don't intend to do that. It's pretty frustrating that the IP I bought to assign to it long term has the same problem but most of our server IPs are not listed...