Hook uses absolute path instead of plugin basename https://github.com/pluginkollektiv/antispam-bee/blob/master/antispam_bee.php#L3014 Notice body reads wrong key with trailing space https://github.com/pluginkollektiv/antispam-bee/blob/master/antispam_bee.php#L1096 (Found via Codex) Ping @pfefferle as you implemented this feature