Linked emailbackup email accounts to company wide settings in firmendaten

-> To do: clean up emailbackup accounts with smtp / imap settings

classes/Modules/SystemMailer/SystemMailer.php

@@ -139,6 +139,7 @@ final class SystemMailer
                 && $account->getSmtpAuthType() !== EmailBackupAccount::AUTH_GMAIL
             )
         ) {
+            $mailerror_text = 'Authtype error.';
             return false;
         }