{% load users_registration %}
{% get_settings_value "ACCOUNT_ACTIVATION_DAYS" as activation_days %}
{% get_settings_value "SITE_NAME" as site_name %}

Hi, welcome to {{ site_name }}:

Please, validate your email using the link below:

http://{{ site }}/accounts/activate/{{ activation_key }}

You have {{ activation_days }} days remaining to activate your account.

Have a nice day,
{{ site_name }} management team.
