Email Template --> How do we include an IMG Tag inside an Email T

Aneesh.
1.Trying to show a document of image in email template which goes to an outlook or some email client is not a good idea as the person seeing that email may not have logged in and the document is accessible only if the user has privileges.
2. The link will be to the docid and not really the .png or .jpeg
3. when appian uses this images in the appian forms or portal , appian automatically applies some css classes to show the image.
4. If you want this in email body, i would suggest an external server link ex: yourcompanywebserver.com/.../emailbody.png which has no authentication around etc. if its dynamic images you could retrieve url from database etc.

would like to see if any appian engineers respond if there is a better way to accommodate your needs.

I run the same technique as described above. Any static images in html mails are held on a server outside of our firewalls to ensure customers can see the content as expected. Alternatively you would need to use the built in function, linktodocumentexternal. If this was for user with access to your Appian installation.