Wietse Venema:
> Charles:
> > So, my question is, why can't the option that I described enable a
> > feature similar to the existing BCC feature,
>
> Appending mail to a NAMED FOLDER such as +Sent is NOT similar to
> the delivery of BCC mail.
>
> BCC email is delivered via the LMTP or equivalent interface which
> does not support the specification of NAMED FOLDERS such as +Sent.
>
> NAMED FOLDERS such as +Sent are supported by the IMAP interface
> which Postfix does not implement.
This may be emulated to some extent with a combination of Postfix
configuration (sender_bcc_maps, recipient_delimiter) and message
store configuration (map a "secret" address extension to the +Sent
folder). Obviously, once the secret leaks, anyone can send mail
into a user's +Sent folder.
Wietse
