One binary, and seven programs that are not in it verifiedWritten by the Hub
The server package is one program. Every companion tool the documentation describes is a separate installation we have not made.
In detail
Worth stating plainly because it decides how much of this chapter is trustworthy. The package gives us the engine, its configuration file, a licence, a man page and the plugin header. The seven tools are documented on the vendor's site and absent from the machine, so every entry about them rests on documentation alone and says so. The same inventory answers a question that came up while cataloguing: there is no changelog in the package — /usr/share/doc/mailerq/ holds a copyright file and the licence — so "what changed in 5.16.2" cannot be settled from the installation and has to come from release notes. For Hub the practical consequence is that installing a companion tool is a separate provisioning decision, not a flag on the existing install job.