Hi, I am trying to pipe an email address into a php script in ISPConfig administration. I read that under Email mailbox/Custom rules it could be defined. I have tried with: to "|/my/script.php" or just "|/my/script.php" then I found errors in /var/vmail/mailbox/x/.sieve.log sieve: info: started log at Nov 27 12:58:22. main script: line 5: error: unknown command 'to' (only reported once at first occurrence). main script: error: validation failed. so i guess some valid sieve script should go to Custom rules instead. Any help would be appreciated.