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
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