I use html signature for Outlook 2007. The signature contains a few image file. I want embed image files so it's shouldn't be on attachment. But v:image
doesn't show image.
<!--[if gte vml 1]>
<v:image style="width:104px;height:108px;" src="data:image/jpg;base64,/9j/4AAQSkZ......AgEAgEAgEAgEAgP//Z">
</v:image>
<![endif]-->
<![if !vml]><img width=104 height=108
src="data:image/jpg;base64,/9j/4AAQSkZJR...AICpUuZdbmkMBXsnT3knOxse8nkcs+B4iAtsAgEAgEAgEAgEAgEAgP//Z" alt="footer_logo.jpg" v:shapes="Resim_x0020_4"><![endif]>
Outlook uses Word to render the images, and Word does not support embedded (src="data:image") images. You need to attach the image as a file, set the PR_ATTACH_CONTENT_ID
property on the attachment (Attachment.PropertyAccessor.SetProperty
), and make sure your HTML refers to the image through the src=cid:xyz
attribute (where xyz
is the value of the PR_ATTACH_CONTENT_ID
property).
PR_ATTACH_CONTENT_ID
property DASL name is http://schemas.microsoft.com/mapi/proptag/0x3712001F