A. To protect contacts that have requested to have the account inactive there is no way to reactivate them. The only way is for the contact to reactivate themselves by either using their password or by using an IP that they previously used. The other option is we can reactivate them for you through the database.
Contacts are automatically inactivated if an email that is sent to the contact bounces back as undeliverable. It is not possible to prevent contacts from going inactive when their email bounces back as undeliverable.
A. - Clicking suspend/activate link from /admin/members - If direct payment is turned on there are several ways - If "Cancel Subscription Action" is set to "suspend on the date the next payment would have been made" then it can do it if next bill date isn't in future - If a payment fails or a subscription is canceled - If you have authorize.net set to ARB
A. In WMT Client Admin, under your site, under the site tab there is an email tab that shows login details for emails. However, the no-reply email is controlled by our software because the software removes emails that bounce (it inactivates the contacts if their email bounces).