Hi
Mayby this help you:

/etc/postfix/sender_checks.pcre
/@scripkabox\.com/
/etc/postfix/recipient_checks.pcre

smtpd_sender_restrictions =
    permit_mynetworks
    check_sender_access pcre:/etc/postfix/sender_checks.pcre
    reject_unknown_sender_domain
    ...

cat /etc/postfix/sender_checks.pcre
/@domain\.ltd/ OK

W dniu 26.03.2023 o 21:52, Doug Hardie via Postfix-users pisze:
I have a specific email sender that is getting the error "Sender addresses rejected: Domain not found".  Sure enough DNS provides no response for that domain.  If I drop off the first part of the domain name, then DNS returns a response.  However, the organization is using the complete name which means the emails are dropped.  I know the proper solution is to have the originator fix their DNS, but that is not going to happen in the near term.  I have tried various ways for a temporary fix, but none have worked so far.  I don't want to remove the "reject_unknown_sender_domain" function as it gets used properly a lot.  Is there some way I can get postfix to accept these for local delivery?

-- Doug


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