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by Avamander 1480 days ago
> If I employ relevant techniques to protect my domain and the protection works, and I am not sending spam (which I am not), then Google (no idea what MS does) should not care about the IP I am sending my e-mail through.

They definitely take the IP less into account if other things are more trustworthy. Totally ignoring it would be short-sighted from them. There are many cases where the domain is fine but looking at the IP and its usage patterns helps prevent abuse. Be it misconfigured (and then abused) SPF, stolen DKIM keys, public website that's email-capable getting compromised, these things happen a lot.

> Even better - Google could help small mail server admins by actually providing the information that landed their e-mail in the spam folder. If the protection is tied to the domain, no spammer will be helped by this knowledge.

They have a significant amount of content-based filtering, knowing that helps spammer reword their crap and bypass those.

> I have proved that the e-mail is tied to my domain and they know that my domain is not spamming - what more do they want?

That's also part of the thing, you can't prove and enforce this for both envelope and header from at the same time. Not to mention how minuscule the amount of perfect and strict SPF+DKIM+DMARC is out in the wild. At this point in time IP's are a very strong signal.

> Stop making up excuses for them. They are negligent at best, malicious at worst.

I haven't made a single excuse, I'm explaining why things work the way they do. You calling it bullshit won't make it so.