On 3/18/24 09:46, Jayson Smith wrote:
Hi,

Comcast/Charter (found out about that one Saturday night when trying to reply to a legit individual message) both reject the message as soon as a blocked server connects, you don't even get to say HELO. Microsoft, when they decide you're evil and put you on their internal blacklist, reject after Mail from:. I find these rejections quite annoying, because clearly this means their spam analytics software is missing out on a lot of details that could help them make a more informed decision about whether to accept the message.

That's the point of rejecting on HELO: you don't download megabytes of content and waste CPU cycles trying to make sense of it. It's a feature-not-a-bug.

Dima

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