a tty and used as the C<--output> destination, C<--pretty> is enabled
by default.
-=item --mua-cmd=COMMAND, --mua=COMMAND
+=item --mua=COMMAND
A command to run on C<--output> Maildir or mbox (e.g., C<mutt -f %f>).
For a subset of MUAs known to accept a mailbox via C<-f>, COMMAND can