$ cd /usr/local/vpopmail/bin¨

$ ./valias -s domain.com
info@domain.com -> alice@xyz.org
info@domain.com -> bob@xyz.org

$ ./valias -i carol@xyz.org info@domain.com

$ ./valias -s domain.com
info@domain.com -> alice@xyz.org
info@domain.com -> bob@xyz.org
info@domain.com -> carol@xyz.org

$ ./valias -d info@domain.com

$ ./valias -i alice@xyz.org info@domain.com
$ ./valias -i carol@xyz.org info@domain.com

$ ./valias -s domain.com
info@domain.com -> alice@xyz.org
info@domain.com -> carol@xyz.org