No the permissions option is working fine, and I use it. Sorry, what I meant was to search for duplicate emails without knowing the email address. i.e. show all emails which have two or mor entries in the memberlist...ahh this gives me a thought, I think I've just found a way.
Because it does not keep the Member number, i.e., the cgi file number in the Members area, so I don't know which one to keep or which cgi number to delete, i.e., I don't know which one the UBB is using if a user has made any posts...
Maybe make a perl program to read al lthe entries in the emailfile.cgi file and put it on a page, if you click on a particular one it can scan for duplicates and dislay all the account data in a different page from that scan.
Would be like a pre select and a refined select to see fo there is exact match or domain match by splitting the user and domain parts of the email.
Was thinking of if I get time making one for my UBB but dont have to much time lately. Dont thing it would be a complicated program to make and youcould tie it into the UBB user name and passcode for login as not to allow unauthorized access to the accunt data.