I have static IPs. That is going to be a required item for hosting email.

My main point is that it is seemingly impossible to tell what Microsoft has and has not shit listed because may operate their own internal list which isn’t published.

I’m somewhat of the opinion though that more people should self host email and try to be a thorn in the side of these corps implementing arbitrary rules. If more people aren’t receiving email more reports about I will be generated and that will hopefully result in more people like us getting our email successfully delivered.

Well I have some hardware colocated at a DC so I can’t speaktoo much about cost plus IP reputation. I can also only rely on individual IP blacklist checking. If MS has decided on their own to blacklist an entire subnet there isn’t much to be done about that.

Well my IP isn’t on any blacklists but I can’t speak on getting whitelistred" by providers. I can send to gmail without going to spam. Idon’t generally send much email though.

Is self hosting a valid answer?

I host my own email.