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:<[EMAIL PROTECTED]> RCPT TO:<[EMAIL PROTECTED]> 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.
