On 01/01/2018 01:30 PM, Alan Hodgson wrote:
I've had good success junking anything with one of my domains in the message-id, where I know the mail isn't actually from someone in that domain. That's a pretty solid spam signature.

are you sure it's not your mailservers adding Message-Id to the
incoming mail?


On 01.01.18 14:01, David Jones wrote:
I too have seen spam with my own domain in the Message-ID but I combined it with a meta rule of !ALL_TRUSTED to be safe. You are correct. This is a good indicator of spam but each person is going to have to create this local rule unless someone wants to write a plugin that can detect this dynamically.

I've had probelms with a similar rule when I send mail directly from one of
mailservers. I've had to replace it by !ALL_TRUSTED && !NO_RELAYS
just FYI

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