PHP sending an HTML EMAIL Page from a website -

i've used php send emails before never send full html page source , i'm wondering start , few other things.

i did bit of research confusion isn't clearing any.

do directly web-page contents , send or can use setting use url? simplest method use , show me example? there risks sending email say... 5000 people , how change header data return link url source?

the following line contents of html page.

 $mail->msghtml(file_get_contents('contents.html')); 

go here full details: http://phpmailer.worxware.com/index.php?pg=exampleagmail

require_once('../class.phpmailer.php'); //include("class.smtp.php"); // optional, gets called within class.phpmailer.php if not loaded  $mail = new phpmailer(true); // true param means throw exceptions on errors, need catch  $mail->issmtp(); // telling class use smtp  try {   $mail->host       = "mail.yourdomain.com"; // smtp server   $mail->smtpdebug  = 2;                     // enables smtp debug information (for testing)   $mail->smtpauth   = true;                  // enable smtp authentication   $mail->smtpsecure = "tls";                 // sets prefix servier   $mail->host       = "smtp.gmail.com";      // sets gmail smtp server   $mail->port       = 587;                   // set smtp port gmail server   $mail->username   = "yourusername@gmail.com";  // gmail username   $mail->password   = "yourpassword";            // gmail password   $mail->addreplyto('name@yourdomain.com', 'first last');   $mail->addaddress('whoto@otherdomain.com', 'john doe');   $mail->setfrom('name@yourdomain.com', 'first last');   $mail->addreplyto('name@yourdomain.com', 'first last');   $mail->subject = 'phpmailer test subject via mail(), advanced';   $mail->altbody = 'to view message, please use html compatible email viewer!'; // optional - msghtml create alternate automatically   $mail->msghtml(file_get_contents('contents.html'));   $mail->addattachment('images/phpmailer.gif');      // attachment   $mail->addattachment('images/phpmailer_mini.gif'); // attachment   $mail->send();   echo "message sent ok\n"; } catch (phpmailerexception $e) {   echo $e->errormessage(); //pretty error messages phpmailer } catch (exception $e) {   echo $e->getmessage(); //boring error messages else! }