Victor Duchovni wrote:
On Wed, Sep 24, 2008 at 11:39:25PM -0500, Noel Jones wrote:
Although there is some overlap of which method to use when,
generally one would use virtual_alias_maps to duplicate mail
for specified users, and recipient_bcc_maps to duplicate mail
for everyone in a specific domain.
Another difference is that to the extent possible, failures to deliver
BCC copies do not generate bounces, so for archive/forensic/... copies,
BCC is often best.
I've always had concerns over the bcc bounce situation. Can you
elaborate a bit more on when a bounce will or will not get sent? From
the documentation for recipient_bcc_maps:
Note: if mail to the BCC address bounces it will be returned to the sender.
We use the *_bcc_maps for forensic purposes, so we would never want a
server-side bcc to generate a bounce to the sender. We do everything we
can to ensure that delivery will never fail, but like I said, it still
concerns me.
