219850 - Add Bcc line to outgoing messages if Bcc recipients exist

Status: RESOLVED WONTFIX

(MailNews Core :: Backend, enhancement)

Description

[Christian Eyrich]

If a mail has one or more Bcc recipients we currently strip these of. So neither
the To: and Cc: nor the Bcc: recipients see the BCC: addresses.

RFC 2822, chapter 3.6.3. lists another two methods we should think about.
1. Include one Bcc: field without an addresses (allowed) indicating to the
recipients that blind copies were sent to someone.
2. Recipients specified in the "To:" and "Cc:" lines are sent a copy of the
message with the "Bcc:" line removed as like now. But each recipient on the Bcc:
list gets a separate copy of the message containing this recipient on the Bcc: line.

Point 1 should be easy but nice. Point 2 will be more difficult as it requires
to create multiple copies (at least 2) of the message and to send it as separate
message.

Comment 1

[Jo Hermans]

related (for solution 2) : bug 185756

Comment 2

[Alan Dobkin]

This is a nice idea in theory, but as David Bienvenu points out in Bug #295502,
most mail servers automatically strip out the BCC header.  So, this this RFE is
also moot and should be closed as INVALID.  The better solution is described in
Bug #295503.

Comment 3

[Christian Eyrich]

> This is a nice idea in theory, but as David Bienvenu points out in Bug #295502,
> most mail servers automatically strip out the BCC header.

Hm, I wasn't aware of this. But just tested and must confirm that - though
according to the RFC Bcc lines in mails are ok.

But don't use INVALID since it's valid but doesn't make sense, so WONTFIX.