/usr/sbin/smtpfront-echo is in mailfront 1.16-1+b2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 | #!/bin/sh
# WARNING: This file was auto-generated. Do not edit!
exec "$(dirname $0)"/mailfront smtp echo "$@"
|