provide a way to disable mailbox integration

mod/profile.php

@@ -148,10 +148,12 @@ function profile_content(&$a, $update = 0) {
 			$jotplugins = '';
 			$jotnets = '';
 
+			$mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
+
 			$mail_enabled = false;
 			$pubmail_enabled = false;
 
-			if($is_owner) {
+			if(($is_owner) && (! $mail_disabled)) {
 				$r = q("SELECT * FROM `mailacct` WHERE `uid` = %d AND `server` != '' LIMIT 1",
 					intval(local_user())
 				);