MAIL HELP

Mailgraph has been giving me useful information for a long while now [1]. It is time to turn the spotlight on this visualization tool for Postfix logfiles and to introduce the related Queuegraph project. Mailgraph [2] is a small footprint daemon that continuously reads the Postfix logfile and shovels the data it gathers into a round robin database (RRD). The front-end is a CGI script that generates a graph based on the RRD data. The program requires the ubiquitous Perl interpreter, RRDTool [3] for the database, and the File::Tail Perl module, which you can obtain from the CPAN archive. The heart of Mailgraph is a Perl script called mailgraph.pl; the daemon I referred to earlier. You can launch the daemon manually, but it makes more sense to add the init script provided by the distribution to run the daemon when you boot your machine. I use the following command to launch Mailgraph: