https://www.tntware.com/tntconnect/help/faq_en/pages/how-can-i-get-past-quot-a-user-with-this-email-address-already-exists-quot-when-joining-this-community.aspxIf you get the error message "A user with this email address already exists." when trying to join the community ... and maybe you weren't expecting to join the community since you were previously an active member, there are some steps you can do to getenCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)