Hector Santos wrote:
[David Skoll]
Otherwise, you risk exposing Bcc: addresses.
[Ned Freed]
Exactly.
[Hector Santos]
I don't see it Ned, and reviewing this is putting a hurting on my brain.
The canonical example I always like to give is:
MAIL FROM:<bigboss(_at_)example(_dot_)com>
RCPT TO:<suckers-about-to-be-fired(_at_)example(_dot_)com>
If the RCPT address is a mailing list, you may not wish to expose that
fact in the To: header. The SMTP server does not have enough information
about the sensitivity of the RCPT argument to know whether or not it's
safe to put it in a header.
But I hope it wasn't misunderstood that we are not talking about a MSA
or MDA doing this. But a post acceptance mail processor, importer, etc,
responsible for storage the direct mail.
See above. The SMTP RCPT argument can be sensitive. And if you mean
adding a To: header after alias expansion, etc. then you are no longer
talking about the x821 RCPT argument.
Regards,
David.