I have seen some tips and tricks of how to do this in the forum but I will explain here a simpler way of doing this without touching any PHP neither PO files. You will be only editing email templates from the comfort of your Admin panel.
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This can be handy for people who is concerned about the content of the listings published in their websites, for example job listings..
1- In listings setting check boxes:
"Users have to validate their listings" and "Notify admin when a new listing is added "
2- Go to email templates and edit the following:
"email_item_validation" and "email_admin_new_item"
Examples for both templates:email_item_validation:
Hi {USER_NAME},
You're receiving this e-mail because your project has been published at {WEB_LINK}.
For safety reasons the content of all projects have to be reviewed by the Admin before approval, this can take 24/48hs.
If you didn't publish this project contact the Admin at {WEB_LINK}
Project details:
Contact name: {USER_NAME}
Contact e-mail: {USER_EMAIL}
{ITEM_DESCRIPTION}
Regards,
{WEB_LINK}
and for email_admin_new_item:
Dear {WEB_TITLE} admin, a new listing has been published:
Contact name: {USER_NAME}
Contact email: {USER_EMAIL}
{ITEM_DESCRIPTION}
Url: {ITEM_URL}
VALIDATE this by clicking on the following link:
{VALIDATION_LINK}
EDIT this listing by clicking on the following link:
{EDIT_LINK}
Regards,
{WEB_LINK}
Now the user gets a message saying he/she has to wait for the admin to approve his listing before it becomes public and the admin get the activation link that the user used to get before
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So, the admin doesn't need to login in the admin panel to moderate new listings, can do it from his email account with direct links..
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UPDATE:
forgot this part:
in your theme folder edit user-dashboard.php and user-items.php to stop users from activating their own projects..
find <a href="<?php echo osc_item_activate_url() ; ?>" ><?php _e('Activate', 'repurpose') ; ?></a>
and delete the line.. same thing in both files.. dashboard and items