I have had many instances people typo their recipients email-domains and the typo domain does not accept mails
Like for instance mail for u...@yahoo.com is sent to u...@tahoo.com

Mail to these domains ( Typosquatted ? ) get stuck in my queue until 4 days when the mail is actually bounced after expiry.
And I cannot decrease my expiry time.

The original sender receives the NDR log very late and is not very happy that he wasnt informed of the typo earlier.
( The queue delay warning .. satisfies some of the requirement though )


I have seen that usually a large number of the typosquatted ( tahoo.com etc ) all go to the same ip addresses, usually to some "park" server , which does not accept mails at all.

Can I configure postfix such a way that if mail is sent to these ip addresses , then bounce immediately.
Or if the DNS is ns1.sedoparking.com etc


Thanks
Ram












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