We are using 6.0.9NE and we just enabled "zimbraDomainMandatoryMailSignatureEnabled" to attach an image to every email. The image is physically located on a different (web) server, and I included it using the normal <img> tag for html.

Is there a way to embed this image using the content-id (cid) method? Currently, the receiver of the email must "Click to download pictures" for the signature image to appear.

Thank you.