On my production site I am using Uddeim 3.5 with CB 1.9.1 on joomla 3.6. I have one user who when they try to reply to an email or create a new email is getting 403 errors. I have looked at the profile, synced users, checked and repaired Uddeim database. Can not seem to find the problem. All other users seem to work fine. Any thoughts?
John