I'm trying to send a multipart/related html email with embedded gif images. This email is generated using Oracle PL/SQL. My attempts have failed, with the image showing up as a red X (in Outlook 2007 and yahoo mail)
I've been sending html emails for some time, but my requirements are now to use several gif images in the email. I can store these on one of our web servers and just link to them, but many users email clients will not show them automatically and will need to either change settings or manually download them for each email.
So, my thoughts are to embed the image. My questions are:
Content-Type: multipart/related; boundary="a1b2c3d4e3f2g1"
<p><IMG SRC="cid:my_logo" alt="Logo"></p>
... more html here ...
[base64 image data here]
Try to insert it directly, this way you can insert multiple images at various locations in the email.
<img src="data:image/jpg;base64,/*base64-data-string here*/" />
And to make this post usefully for others to: If you don't have a base64-data string, create one easily at: http://www.motobit.com/util/base64-decoder-encoder.asp from a image file.
Email source code looks something like this, but i really cant tell you what that boundary thing is for:
To: firstname.lastname@example.org Subject: ... Content-Type: multipart/related; boundary="------------090303020209010600070908" This is a multi-part message in MIME format. --------------090303020209010600070908 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-15"> </head> <body bgcolor="#ffffff" text="#000000"> <img src="cid:part1.06090408.01060107" alt=""> </body> </html> --------------090303020209010600070908 Content-Type: image/png; name="moz-screenshot.png" Content-Transfer-Encoding: base64 Content-ID: <part1.06090408.01060107> Content-Disposition: inline; filename="moz-screenshot.png" [base64 image data here] --------------090303020209010600070908--
//EDIT: Oh, i just realize if you insert the first code snippet from my post to write an email with thunderbird, thunderbird automatically changes the html code to look pretty much the same as the second code in my post.