When previewing a marketing email, external links will function, but pink Stampede links won't. The "View Email in Browser" and "Unsubscribe" links won't work in the preview as it's not a live email, but they will function in the actual sent email.
When you're putting together a marketing campaign, you can send a preview to see how the email will appear to your customers. External links will function within your email content, but please note that the pink Stampede links won’t work.
At the top and bottom of these emails, you'll find the links: View Email in Browser:
Unsubscribe from our emails:
These links do not function when sent out as a preview, as it is just a preview and not a live email. However, when sent out for real, these links will work for your customers.