-+# Uncomment if your MTA does not strip Bcc: headers.
-+# (exim4 and postfix strip them, exim(3) does not.)
++# The behavior of this option on the Debian mutt package is
++# not the original one because exim4, the default SMTP on Debian
++# does not strip bcc headers so this can cause privacy problems;
++# see man muttrc for more info