Question

What is the correct header information and MIME types for an email message with HTML content only, not mixed type (with both text and HTML).

Just to inform, I am using Swiftmailer (PHP) to this job.

Answer 1

This is my code:

$swift = new stdClass();
$swift->transport = Swift_SendmailTransport::newInstance( '/usr/sbin/sendmail -bs' );
$swift->mailer = Swift_Mailer::newInstance( $swift->transport );
$swift->message = Swift_Message::newInstance('Title')
    ->setFrom( array('[e-mail]' => 'Me') )
    ->setTo( array( '[e-mail]' => 'Some One' ) )
    ->setBody('<h1>It works!</h1>', 'text/html');

You can also take a look at the Headers documentation on http://swiftmailer.org/docs/headers