Emailing from script Not working on 750GL

I put the exact same script on a RB750GL that I am using on my RB3011.

It works on the 3011
On the 750GL it fails and I get this in the Log
11:41:04 system,e-mail,error Error sending e-mail : invalid FROM address

Any ideas?

Solved

In the script…
start-tls=yes

In the 3011…
I had that variable set in the email tool settings.