I don't know about PHP, but the maximum number of recipients per message is configurable in your mail server's SMTP MTA. Also note that if you send a message to 2,000 people at a foreign domain, their server may reject it if they have their limit set to <2,000. -- AdamT "Justify my text? I'm sorry, but it has no excuse." -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php