Send email with PHPMailer - embed image in body

I'm trying to send HTML mail, with PHPMailer, with images. The body is loaded from a html file, that contains all the info.

When sending the mail, the image does not appear in the body, although I even send the image also as an attachment.

HTML <img> tag points to the same place as the place.

PHP:

$mail->AddAttachment('img/2u_cs_mini.jpg');

How can I make the html point to the attachment so the image can be loaded in the body.

Looking at the example that comes with PHPMailer I do not notice any difference, and in their case the image does appear.

I found the answer:

$mail->AddEmbeddedImage('img/2u_cs_mini.jpg', 'logo_2u');

and on the <img> tag put src='cid:logo_2u'

According to PHPMailer Manual, full answer would be :

$mail->AddEmbeddedImage(filename, cid, name);
//Example
$mail->AddEmbeddedImage('my-photo.jpg', 'my-photo', 'my-photo.jpg '); 

Use Case :

$mail->AddEmbeddedImage("rocks.png", "my-attach", "rocks.png");
$mail->Body = 'Embedded Image: <img alt="PHPMailer" src="cid:my-attach"> Here is an image!';

If you want to display an image with a remote URL :

$mail->addStringAttachment(file_get_contents("url"), "filename");