[Tom]

I find it kind of surprising that the mass email functionality was even left IN this system, as it's a major, major source of spam. Of course, disabling it manually is easy, but this should be disabled on distribution as well!!!

For phpbb2 forums:
open up templates/subSilver/admin/user_email_body.tpl.
Replace the entire contents with this:

<table cellspacing="1" cellpadding="4" border="0" align="center" class="forumline">
	<tr> 
	  <th class="thHead" colspan="2">DENIED</th>
	</tr>
	<tr> 
	<td> Due to the spam potential, you are not allowed to mass mail individuals from these forums. <br />We're sorry, but we can not allow this<br />
	</tr>
	
</table>

For phpBB3 Forums
Open up adm/style/acp_email.html, and replace the entire contents with:

<!-- INCLUDE overall_header.html -->

<a name="maincontent"></a>

<h1>Not Allowed</h1>

<p>
	Due to the spam potential, you are not allowed to mass mail individuals from these forums. <br />
We're sorry, but we can not allow this<br />
	</p>


<!-- INCLUDE overall_footer.html -->

Of course, you can word it how you like, but you get the idea. This will prevent individuals from loading down your servers and sending out mass emails.

it is STRONGLY advised that the developers put something like this in their distribution, as mass emails + free forum hosts = massive trouble.

Keep in Mind
This fix will have to be applied every time you upgrade, UNLESS admin put something in to stop this!