David Champion wrote: > Mutt can do it, too: set write_bcc in your .muttrc. But note that this > makes mutt send the Bcc: header to your MTA, too. If your MTA filters it > out, that's ok, but if it does not, you might want to wrap your MTA in a > script or just avoid this setting.
formail (from the procmail distro) would be a good tool for stripping out the bcc if your MTA does not. You could create a script like such: #!/bin/sh cat - | formail -I bcc | /usr/sbin/sendmail $* and specify this script instead of /usr/sbin/sendmail in your $sendmail variable.