Source: zabbix Severity: wishlist zabbix_sender (along with its man page etc) is currently part of the zabbix-agent package. For future Debian releases please consider moving zabbix_sender (along with its man page etc) to a separate package, probably named "zabbix-sender".
Doing this would address two issues. Firstly, it would simplify installing zabbix_sender alongside zabbix_agent2 (provided by the package zabbix-agent2) whereas currently achieving this requires installing both the zabbix-agent & zabbix-agent2 packages and then having to disable (and possibly mask) zabbix-agent.service because zabbix_agent and zabbix_agent2 perform a similar role and attempt to listen on the same port. Secondly, there can be legitimate cases for needing zabbix_sender without either zabbix_agent or zabbix_agent2. Doing this would also match how Zabbix's upstream Debian packages have zabbix_sender packaged separately from zabbix_agent and zabbix_agent2. To help with the transition for upgrades, it would probably make sense for the zabbix-sender package to be added to the Recommends (or at least the Suggests) of the zabbix-agent package.