Filter: postie_email_notify_subject

This filter is called before a success notification email is sent and can be used to modify the subject line.

• $subject – a string that is the email subject.
• $postemail – an array that represents the parsed email. See filter: postie_post_pre for more details.
• $postid – the id of the post that has been created.

add_filter('postie_email_notify_subject', 'my_postie_email_notify_subject', 10, 3);

function my_postie_email_notify_subject($subject, $postemail, $postid) {
 return $subject . ' / Dieser Beitrag wurde geschrieben';
}