27.3.3.6. Informational or Debugging Options

--configdump — Displays every possible option based on information from .fetchmailrc and Fetchmail defaults. No email is retrieved for any users when using this option.

-s — Executes Fetchmail in silent mode, preventing any messages, other than errors, from appearing after the fetchmail command.

-v — Executes Fetchmail in verbose mode, displaying every communication between Fetchmail and remote email servers.

-V — Displays detailed version information, lists its global options, and shows settings to be used with each user, including the email protocol and authentication method. No email is retrieved for any users when using this option.