BoltMail
Currently the "forward to friend" form say something like..."I thought you'd find this newsletter really interesting..." I'd like to change that to something more personal. Is that possible?
To do this simply go to 'Website Forms' (at the top).

Clicked 'Edit' next to the 'Send To Friend' form.

Clicked 'Next'.

Once that page finished loading, clicked 'Next' again.

In the 'Edit Form HTML' right at the bottom change:

Hey, I found this really interesting newsletter that I thought you might like to read for yourself.

To

This is my personal message to you.

(or what ever you wish to say) and hit 'Save'.

Done!