Peter Cralen on "[Plugin: WP Mail SMTP] Gravity Forms "from name" overridden"

btw. try to consider use transactional emails with API instead of SMTP. Actually it looks like the best solution for emails. Its faster.
About Gravity forms and Reply to with name try to contact their support, maybe they can help you.
What I tested yesterday with Gravity, it does not work even without any smtp plugin, it just does not work if column is filled with {name} {email} at the same time and show error with mentioned {name} <{email}>