It should work on all @url{https://en.wikipedia.org/wiki/POSIX,
POSIX}-compatible systems. Easy @ref{Integration, integration} with existing
@url{https://en.wikipedia.org/wiki/SMTP, SMTP} servers. Single
-@url{http://yaml.org/, YAML} configuration file.
+@url{https://hjson.org/, Hjson} configuration file.
Why create yet another store-and-forward solution when UUCP, FTN and
even SMTP exists? Look in @ref{Comparison, comparison} section!