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I am emailing off my server and its really slow. I think the problem is my logic, not the code. Current speed is about 30-40 emails per minute. I need to get it up to at least 175/min but I was really hoping for more like 700/min. The server is a Dual Hexa-Core 2.4Ghz with 32gb ram and dedicated to only this task. All server reports show low resource usage. The logic flow is like this: 1. Get email content. 2. Loop through records in database. 3. Check record against some other tables (ie unsubscribe table) 4. If record checks then send email by file_get_contents passing all the email content through get variables. 5. Other script is basic email script. See below: <?php //GET VAR INPUT $to = htmlentities($_GET['to']); $friendly_from = htmlentities($_GET['friendly_from']); $email_from = htmlentities($_GET['email_from']); $subject = htmlentities($_GET['subject']); $text = htmlentities($_GET['text']); $html = $_GET['html']; $html = '<head><title>' . $subject . '</title></head><body>' . $html . '</body>'; //SEND EMAIL # Setup mime boundary $mime_boundary = 'Multipart_Boundary_x' . md5(time()) . 'x'; $headers = "MIME-Version: 1.0\r\n"; $headers .= "Content-Type: multipart/alternative; boundary=\"$mime_boundary\"\r\n"; $headers .= "Content-Transfer-Encoding: 7bit\r\n"; $headers .= "Reply-To: " . $email_from . " \r\n"; # Add in plain text version $body.= "--$mime_boundary\n"; $body.= "Content-Type: text/plain; charset=\"charset=us-ascii\"\n"; $body.= "Content-Transfer-Encoding: 7bit\n\n"; $body.= $text; $body.= "\n\n"; # Add in HTML version $body.= "--$mime_boundary\n"; $body.= "Content-Type: text/html; charset=\"UTF-8\"\n"; $body.= "Content-Transfer-Encoding: 7bit\n\n"; $body.= $html; $body.= "\n\n"; # End email $body.= "--$mime_boundary--\n"; # <-- Notice trailing --, required to close email body for mime's # Finish off headers $headers .= "From: " . $friendly_from . " <" . $email_from . ">\r\n"; $headers .= "X-Sender-IP: " . $_SERVER[SERVER_ADDR] . "\r\n"; $headers .= 'Date: ' . date('n/d/Y g:i A') . "\r\n"; //Mail it out $response = mail($to, $subject, $body, $headers); //RESPONSE (Success = 1, Fail = 0) echo $response; die(); ?> The entire thing runs on a cron job every minute checking with a lock to prevent multiple instances as the file usually executes for about 5 minutes. I have tried turning off parts of the code and retesting such as many of my database look ups but as you would expect they optimize by like 1% or something very little like that. The thing that takes a long time is the actual sending of the email. So how to get that to go faster?
