Hi Johnny
Below are the answers for your questions:
1. Yes. All email messages are customizable. You can access to Membership Pro -> Emails & Messages, find the messages and customize it to meet your need
2. No, we do not have dedicated reminder email messages for group members
3. Yes. It is number of emails sent in each batch. I do not know a good value for it. But you should not set it to high value because some server might limit number of emails you are allowed to send each time. Better set it to a small number (like 20 or less)
4. Yes, multiple BCC Emails are supported. You can separate it by comma
5. Yes, see
docs.joomdonation.com/membershippro/basic-setup/setup-reminder
Regards,
Tuan
