We have added the functionality around auto-adding content into emails. Previously, files could be auto-added to email content based on their file tag if the file tag matched the variable set in the email template. We have now improved on this functionality and included ability to auto-add hyperlinks into email body content based on their tags. Links will be injected anywhere in email body text that the 'Links' variable, available in email templates, has been added.
To use this functionality, when creating an email template, insert the new 'Hyperlinks' field variable in the email body when you would like your links to appear.
Then go the the Files/Links tab and select which tags you want files/links with to be auto-added into the email.
At runtime, any files/links in the work item with these tags will be auto-added to canned email content.