Problem to reactivate an account which modified its e-mail

Problem to reactivate an account which modified its e-mail
- I setup version 1.7.1 of ELGG.
- I use the plugin “simpleusermanagement” which enables me to validate my users
though for the moment I do not be able to transmit emails starting from the site to them.
the current problem is that when a user, modifies information on the level of his account
(Ex: E-mail) it is required of him to confirm this modification starting from the email
which was sent in new E-mail.
 However like I l' said in top, my site does not allow to transmit emails.
Then which adopted step because I repeated same action on my account on the level of elgg.fr,
 I tested note qu' it is necessary indeed to go to validate the messages which are sent after these modifiactions.
Can you give me help