S Moonesamy wrote: > > In Section 8: > > "If the RFC5322.From domain does not exist in the DNS, Mail Receivers > SHOULD direct the receiving SMTP server to reject the message." > > Why is there such a recommendation? What is a mail receiver? I am > asking the question as there is "receiving SMTP server" in that sentence. That would be silly. RFC5322.From might contain no DNS domain to begin with. > > In Section 10.1: > > "Have no RFC5322.From field (which is also forbidden under RFC 5322 > [MAIL])" > > Where is it stated in RFC 5322 that it is forbidden? That RFC > specifies a syntax for the Internet Message Format. Some MTAs (sendmail?) seem to recreate an RFC5322.From from the Envelope, in case that it is missing in the message. -Martin