This Nagios plugin allows users to verify whether an SMTP server is blacklisted or not, making it an indispensable tool for those who want to keep their email communications reliable and efficient.
To use check_rbl, simply enter "check_rbl 1.1.0 []" into your Nagios setup. The plugin provides a broad range of usage options, such as help and version information, verbose settings, and timeout adjustment. You can also specify the hostname and servername, along with warning and critical server blacklisting levels.
In addition, check_rbl provides an extra-opts feature, which allows you to load section or configuration file-specific options that may have not been included in the plugin's standard release. Furthermore, check_rbl supports parallel checks and has a default retry limit of four queries.
Overall, check_rbl is a powerful and versatile Nagios plugin that provides a comprehensive solution for monitoring SMTP server blacklisting. The plugin is easy to use and provides users with a lot of flexibility for customization when it comes to the number of retries or parallel checks. For all these reasons, I highly recommend check_rbl as an essential addition to any Nagios setup.
Version 1.1.0: N/A