Re: send bcc: wierdness?

[Valdis Klētnieks]

On Sun, 12 Apr 2020 18:59:01 +0700, Robert Elz said:

> Yes, so both were OK, which means it is OK to transmit the message.
>
> That needed to be done in two different SMTP transactions, to avoid
> revealing the bcc user's address to the other user (nmkh doesn't
> know they're both you).

But if it already knew that it would need two transactions, why did it bother
with the first transaction?

Or is the problem that if the first transaction sends 1 bcc note and succeeds,
and the second sends 3 successful and one failed, error recovery gets difficult?

(Though even if you have no bcc's, and 2 recipients to 1 mx, and 2 recipients
to a different mx, and one fails, you still have the same problem...)

Or has it been doing a pre-test all along and I've just never caught it at it? 
:)

pgplAMK0YrNsK.pgp
Description: PGP signature