RFC 5821 seems rather elusive. Where can one not in the know find a copy? On Wed, Apr 18, 2018 at 3:40 PM, Jeremy Harris <j...@wizmail.org> wrote:
> 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 >
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