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0 pointsjabroni_salad2y ago0 comments

5.7.1 is the response code Exchange uses any time a policy blocks a message. If they are using Exchange then they set it up with a mail flow rule action of 'block the message / reject the message and include an explanation'.

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number62y ago

Am I the only one who thinks this is really thoughtful. Even the error message is good. Brilliant

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