title: Mailcow: Various information agents: linux catalog: unsorted license: GPL distribution: check_mk description: Tested with Mailcow versions 2022-07a and higher (use at your own risk with lower versions). Tested only with fully dockerized Mailcow instances. You have to provide at least the hostname/IP of your Mailcow server and an API key. Got to configuration settings and create a new API key (read-only access is sufficient). Allow API access to at least your CheckMK server IP address. Shows several information about a Mailcow instance, e.g. number of domains/mailboxes/messages. The check will raise WARN if an update is available (and if this check is enabled) The check will raise WARN/CRIT if the number of domains is above the configurable levels. The check will raise WARN/CRIT if the number of mailboxes is above the configurable levels. The check will raise WARN/CRIT if the number of messages is above the configurable levels. The check will raise WARN/CRIT if the solr size is above the configurable levels. The check will raise WARN/CRIT if the number of solr documents is above the configurable levels. inventory: one service is created (with several details)