Hi TJ,
Sorry for the late response. Opt In Email does not have the ability to add security roles but this can be done in combination with either Dynamic Forms or Dynamic Registration.
Here's a forum thread for Dynamic Forms integrated with Opt In Email.
http://www.datasprings.com/products...s/aft/5805 You can also do this at registration. Dynamic Registration offers a built in integration with Opt In Email in Module Configuration where a user can opt in to lists, get registered then given a role based on the list selected.
Hope that helps. Let us know if you have other questions. Thanks!
Candace