You can use PHP exception to handle it and the script will not die. Details at http://php.net/manual/en/language.exceptions.php. Thanks, Don. -----Original Message----- From: Lewis Kapell [mailto:lkapell@xxxxxxxxxxxxx] Sent: Monday, April 19, 2010 12:22 PM To: php-windows@xxxxxxxxxxxxx Subject: Behavior of mail() function Running PHP version 5.3.1, I find that if my script tries to send an email message to an address in the local domain, and the address is invalid, mail() throws an error: mail(): SMTP server response: 550 5.1.1 <SAMPLE@xxxxxxxxxxxxx>: Recipient address rejected: User unknown in local recipient table Is there a way I can configure PHP so that mail() would return false in this case, rather than throwing an error which causes the script to die? Our mail server is a Linux server running Postfix, if that matters. Thank you Lewis Kapell -- PHP Windows Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Windows Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php