Getting round the problem whereby Drupal will not allow more than one account with the same email address

Accounts within a Drupal website must all have unique email addresses, which can sometimes be a problem when potential site users to not have access to email.

If this is causing you a problem, we suggest you use modified versions of your own email address so that each account can have a unique address.

Although these 2 addresses are unique as far as Drupal is concerned:

Most email systems will consider them to be the same - emails to the second address will still arrive in the first's email box. Anything between the + and the @ gets ignored.