On Mon, Apr 21, 2025 at 5:16 PM Allen Robinson <[email protected]> wrote: > > > > On Sun, Apr 20, 2025, 6:02 a.m. Dave Crocker <[email protected]> wrote: >> >> On 4/20/2025 11:02 AM, Eliot Lear wrote: >> >> What system actually does this? Following the first method in Section 3.6.3 >> of RFC 5322 and a practice that goes as far back as RFC 822, Neither >> Sendmail nor GMail, for instance, retain the BCC field in the message. Is >> this a matter of tracing how a message got exploded (say, when a mailing >> list was Bcc'd)? >> >> >> sigh. Haven't looked at the behavior of this in quite a few years. Your >> note prompted my doing some testing and, alas, all the combinations I tried >> produced received messages having no BCC field. >> >> Sad. >> >> I noted why it is good to have the field visible to a BCC recipient. And why >> I think the ideal is that their copy show their address in it. > > Slightly off-topic, but it's interesting to me. How were you testing this > through Gmail? Using the android app to send an email with BCC seems to work > the way you expect it to, with a Bcc field present in the message delivered > to that recipient.
It is slightly off-topic, but it's interesting to me too. In this case it is probable that the android app sends a separate copy of the email for each BCC address (with the related BCC header). I tested Gmail as an SMTP client for message submission and it works as above, by sending a separate copy for each BCC address. Francesco >> >> d/ >> >> -- >> Dave Crocker >> >> Brandenburg InternetWorking >> bbiw.net >> bluesky: @dcrocker.bsky.social >> mast: @[email protected] >> >> _______________________________________________ >> Ietf-dkim mailing list -- [email protected] >> To unsubscribe send an email to [email protected] > > _______________________________________________ > Ietf-dkim mailing list -- [email protected] > To unsubscribe send an email to [email protected] _______________________________________________ Ietf-dkim mailing list -- [email protected] To unsubscribe send an email to [email protected]
