How to prevent emails sending if form is updating a post

Created by Phil Kurth, Modified on Tue, 28 Jun, 2022 at 12:14 PM by Phil Kurth

If you are in a situation where you wish to send email notifications only when a form creates a new post, you may use the af/form/email/recipient filter to override the recipient list based on the form's configuration args. A return value of FALSE will disable the notification email.

function only_send_mail_on_new_example( $recipient, $email, $form, $fields ) {
  // Check for correct form.
  if ( $form['key'] !== 'FORM_KEY' ) {
    return $recipient;
  }

  // Get form args.
  $args = AF()->submission['args'];

  // If form is set to create new posts, return the recipient list.
  if ( $args['post'] === 'new' ) {
    return $recipient;
  }

  // Otherwise, return false to disable sending of emails. 
  return false;
}

add_filter( 'af/form/email/recipient', 'only_send_mail_on_new_example', 10, 4 );