BuddyPress.org

Can you help me understand where the problem is? When someone register’s, the activation email is not received.
• BP Nouveau
• Plugins: BuddyPress, Check Email, Floating Publish Button, Updraft, Wordfence Security
• The recipient will receive a test email via Check Email.
• Using Divi on non-BP pages such as contact, about, policies, etc.
• I had BP on this site a month ago, and this problem occurred then. I had the host provider do a fresh WP install a few days ago to make sure the code and root directories were clean. Still having issues. I tried this with several of my emails and the activation emails are not received.