Fatal error: Uncaught Error: Class "OCA\Mail\Send\AHandler" not found in /home/tzuovhm/tzuovhm/apps_/mail/lib/Send/CopySentMessageHandler.php:19 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/mail/lib/Send/CopySentMessageHandler.php on line 19