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List:       postfix-users
Subject:    Re: "SPF no-mail record" clashing with reject_unknown_recipient_domain
From:       "A. Schulze" <sca () andreasschulze ! de>
Date:       2019-10-28 15:04:16
Message-ID: 20191028160416.Horde.aJgQpvaqNG9fcNYpAwFInqi () andreasschulze ! de
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Ehlers, Y.W. (Ydo):

> There is no MX record, there is no A record, so mail can not be delivered.
> And Microsoft tops it off by explicitely claiming no e-mail will be send
> from this domain

for the record: one like to use RFC 7505 to express "this domain don't  
send / receive email"

adding an SPF -all is more one of many advises described in the fine  
MAAWG BCP:
https://www.m3aawg.org/sites/default/files/m3aawg_parked_domains_bp-2015-12.pdf

Andreas

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