Ion Auth - Lightweight Auth System based on Redux Auth 2

[eluser]Keloo[/eluser]
I've changed the smtp server from localhost to my smtp server and I got another error

A PHP Error was encountered

Severity: Warning

Message: mail() [function.mail]: SMTP server response: 451 See http://pobox.com/~djb/docs/smtplf.html.

Filename: libraries/Email.php

Line Number: 1553

Strange, it used to work in the past, no I don't know why it doesn't work anymore.
I guess I won't be using the email activation.