Fixed adding of email-forwarding, fixes #626

Signed-off-by: Florian Aders (EleRas) <eleras@froxlor.org>

templates/Froxlor/customer/email/forwarder_add.tpl

@@ -21,6 +21,7 @@ $header
 					<input type="hidden" name="s" value="$s" />
 					<input type="hidden" name="page" value="$page" />
 					<input type="hidden" name="action" value="$action" />
+					<input type="hidden" name="id" value="$id" />
 					<input type="hidden" name="send" value="send" />
 				</p>
 			</fieldset>