Embed attached images in HTML emails
<p>If I attach an image to an email, how do I place it within the HTML content? I tried using just the filename as the image source but that doesn't seem to work. </p>
P粉6148403632023-08-25 12:27:00
The image attachment part requires Content-ID
--T4nu9J8b Content-Type: image/png Content-ID: <idname> Content-Transfer-Encoding: base64 Content-Disposition: attachment ;filename="testimage.png" iVBORw0KGgoAAAANS... --T4nu9J8b--
Embed it in the markup using the same Content-ID (without the angle brackets)
<img alt="Embedded Image" src="cid:idname"/>
This should allow additional images to be displayed in HTML!
P粉4500792662023-08-25 00:02:53
More specific instructions on how to build HTML email messages.
The result will be a multipart MIME message containing a text/html part (if you do use an alternative part of type text/plain) and multiple images, which are then referenced from the HTML.
See RFC 1813 and RFC 2378 for more information about content-ids and related data (referenced by CIDs in HTML source code) in mixed MIME.