> I came across something that I have not seen before: a domain (call it > example.com) that has no email addresses. No one sends or receives email > for that domain.
If there is no email from [email protected], the domain should say so in SPF, DKIM, DMARC, and so on. Cloudflare has a webpage on how to protect domains that do not send email. > My doubt is that since the outgoing email server identifies itself as > host1.example.com in the EHLO, is there a requirement or even an > expectation that [email protected] will be able to receive email. Presumably those other domains list host1.example.com as an authorized sender. Is that enough? If you're concnerned that the messages would be flagged as suspicious, then RFC's aren't the whole story. Wietse _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
