Is there an easy way to add a button or something so that recipients of your emails can easily add you to their contacts so you don't go to junk mail? I can place the text "Please remember to add us to your contacts so you receive all of our updates", but if there was a button they could push that would do that for them then I would have a shot of it actually happening. Most people won't do it unless you make it that easy for them.
This is a great feature request! I can understand how helpful it would be to have a button like this in your campaign. I apologize a button that allows your contacts to add your email address is not a feature that is currently available. We do however have an article in our Help Center that goes over how they can add you to their safe sender list in their own account. Have you tried linking this article into your email through a clickable button?