This plugin will verify DKIM signatures as defined by RFC 6376 and add an Authentication-Results header as appropriate.


There is no configuration required for this plugin.


This plugin also provides a command-line test tool that can be used to debug DKIM issues or to check results.

# dkimverify < message
identity="" domain="" result=pass

You can add --debug to the option arguments to see a full trace of the processing.


This plugin and underlying library does not currently support DKIM body length limits (l=).