When I setup the plugin, and enter valid user/pass, I get this error:
The Constant Contact account has been locked.
User account is locked due to too many bad login attempts. Please reset follow these instructions to reset account access.
But it's NOT correct! My account at Constant Contact is NOT locked, and I can still login through their website. But this plugin is unable to connect to my account.
I spoke to CC tech support, and they confirmed that there's nothing wrong with my account.