I'm just getting started looking at the forum to replace my existing one, and I'll want to do this as well, one account per email addy...
It looks to me in admin/GForum/User.pm sub signup_submit, you just need to add some code around line 247 to also check the user_email field, as well as the user_username field... The logic of the process should be exactly the same, if it exists error it out and don't forget to change the error message, it's name and update the langauage file for it...
I'm thinking that line 247 and 248 should be duplicated, changing the field there from user_username to user_email...
I haven't tested it, I'm not that far along in the code yet, so hopefully someone else can chime in with some help... HTH
It looks to me in admin/GForum/User.pm sub signup_submit, you just need to add some code around line 247 to also check the user_email field, as well as the user_username field... The logic of the process should be exactly the same, if it exists error it out and don't forget to change the error message, it's name and update the langauage file for it...
I'm thinking that line 247 and 248 should be duplicated, changing the field there from user_username to user_email...
I haven't tested it, I'm not that far along in the code yet, so hopefully someone else can chime in with some help... HTH