On 18/04/18 23:03, Michael Wise via mailop wrote: > Sorry, what section of 2821?
5821 has 4.4. Trace Information "MUST insert trace ("time stamp" or "Received")" "The FROM clause, which MUST be supplied in an SMTP environment, SHOULD contain both (1) the name of the source host as presented in the EHLO command and (2) an address literal containing the IP address of the source, determined from the TCP connection." 4.1.3. Address Literals "For IPv4 addresses, this form uses four small decimal integers separated by dots and enclosed by brackets such as [123.255.37.2]" -- Cheers, Jeremy _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop