It’s fixed now. See this thread for more informations: Forms - What is the best way to pass mailer arguments? - solved
Now you can add this code to config/bootstrap.php
or to an addon to change your mail settings:
<?php
$app->on('forms.submit.before', function($form, &$data, $frm, &$options) {
// mail subject
$options['subject'] = 'custom special mail subject';
// add reply_to
$options['reply_to'] = trim($data['mail']);
// cc and bcc
$options['cc'] = ['mail1@example.com', 'mail2@example.com'];
$options['bcc'] = ['mail1@example.com', 'mail2@example.com'];
});
Have a look at lib/Mailer and Forms/bootstrap.php to see more possible options.
Or try
I added a simple templating system for mail subjects and I’ll add more options for CC, BCC etc. soon.