for any service I ran that I cared about or was responsible for (not shovelware that came with the Linux distro.) Of course I liked qmail too and used it to build something that's nearly indescribable but was kinda like a webcrawler but for email and could send and receive emails to do information gathering and dissemination tasks asynchronously over a long time.
https://cr.yp.to/daemontools.html
for any service I ran that I cared about or was responsible for (not shovelware that came with the Linux distro.) Of course I liked qmail too and used it to build something that's nearly indescribable but was kinda like a webcrawler but for email and could send and receive emails to do information gathering and dissemination tasks asynchronously over a long time.