Hi Nikos, There is a number of ways you can handle this. But I have found these days "many" web - hosts are limiting the number of emails a "domain" may send "per hour". Many have set the limit to "500 emails per domain per hour" ... Which means you can only send 500 emails per hour via the domain you are sending mail from. Now if you do not setup a "decent" mail out you can find only 500 emails are sent and the rest bounce because the limit was "attempted" to be exceeded. So if it is exceeded it will bounce back to the "root email address". But you can set up a mail out to only send so many emails an hour that your "host" allows. I have setup plenty of customized mail programs on servers that have a limit. So if the limit is 500 you set the program to send 499 an hour. SO it's not over for any reason. You can find out your limit or if any exist by contacting your web - host. If no limit is set you don't have to worry as much. Need more assistnace please email the list as my time limit of responding may vary. J From: "nikos" <nikos@xxxxxxx> To: "PHP-mailist (PHP-mailist)" <php-db@xxxxxxxxxxxxx> Date: Mon, 20 Sep 2004 16:18:57 +0300 Subject: Mass mail Hello list A client of mine sends thousands of mails as newsletters and wants as to make an Interface to admin this list. Its easy to put this mail list in a MySQL table and make the interface on PHP language and with mail() function to send a newsletter. The question is that if this function can handle a thousand mail or more or there is a most appropriate way Find local movie times and trailers on Yahoo! Movies. http://au.movies.yahoo.com -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php