net-mail Provides a daemon for changing passwords over the network. This feature is commonly used for TCP loopback password changing from web scripting languages such as Perl and PHP, removing the requirement for setuid perl scipts or running a web server process as root. This version of poppassd has PAM support, and also optional support for cracklib enforcing the use of strong passwords. Note that the protocol is plain text and so insecure for all but loopback use.