> > Again, this confuses number of recipients of copies of the message, with
> > number of recipients specified in a single SMTP session.
>
> No it does not. The number of recipient in a single SMTP session is
> related to the number of recipients in the email message, and only
> those recipients which are in same destination SMTP server are
> something that can be used to specify multiple recipients in the SMTP
> session.

Dave is right here, and we do need to separate the situations.
Multiple message recipients can be handled either by multiple RCPT
commands in one SMTP transaction, or by multiple SMTP transactions
with one RCPT command each.  The number of message recipients is
unrelated to the number of RCPT commands for the purpose of this
discussion, and the fact that messages often have many recipients does
not mean that MSAs and/or MTAs need to use multiple RCPT commands in
one SMTP transaction.

Barry

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