[@wpgerd Participant 11 years, 7 months ago]

Hello Robkk,
thanks for your reply. At first I thought it was WP Better Emails or MailPoet Newsletter. I deaktivate this plugins, but the same.
Now I used a fresh Testinstallation of WP, installed bbpress and the same. If someone subscribe to forum, I got a Mail delivery failed notice.

I try a little search and found in this file \wp-contetnt\plugins\bbpress\includes\common\functions.php this code:

// Strip tags from text and setup mail data
$topic_title = strip_tags( bbp_get_topic_title( $topic_id ) );
$reply_content = strip_tags( bbp_get_reply_content( $reply_id ) );
$reply_url = bbp_get_reply_url( $reply_id );
$blog_name = wp_specialchars_decode( get_option( ‘blogname’ ), ENT_QUOTES );
$do_not_reply = ‘<noreply@’ . ltrim( get_home_url(), ‘^(http|https)://’ ) . ‘>’;

// For plugins to filter messages per reply/topic/user
$message = sprintf( __( ‘%1$s wrote:

// Strip tags from text and setup mail data
$topic_title = strip_tags( bbp_get_topic_title( $topic_id ) );
$topic_content = strip_tags( bbp_get_topic_content( $topic_id ) );
$topic_url = get_permalink( $topic_id );
$blog_name = wp_specialchars_decode( get_option( ‘blogname’ ), ENT_QUOTES );
$do_not_reply = ‘<noreply@’ . ltrim( get_home_url(), ‘^(http|https)://’ ) . ‘>’;

// For plugins to filter messages per reply/topic/user
$message = sprintf( __( ‘%1$s wrote:

So I think, the email will be generatet of bbpress. How can I prevent this Mail delivery failed notice?

Gerd