Set any email param

See $additional_parameters at

  • Multiple calls will append existing params.
  • To remove an existing param, specify NULL as the value.

This function may only be applicable if you don't have other WireMail modules installed as email params are only used by PHP's mail() function.


$m->param(string $value);



Return value


Object instance it was called from (method supports fluent interface).

$m methods and properties

API reference based on ProcessWire core version 3.0.115