Hello, i have question, how to secure this. Someone can create domains (for e-mails) and he will take '123.com' or 'example.org', next; he can add eg. firstname.lastname@example.org or email@example.com, and it's available to login to SquirrelMail using this address and password, but it's not end. He can send email! and it's works with gmail. How to disable fake domains/email addresses? Thanks!