Index: modules/contact/contact.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/contact/contact.pages.inc,v
retrieving revision 1.30
diff -u -p -r1.30 contact.pages.inc
--- modules/contact/contact.pages.inc	9 Oct 2009 15:39:12 -0000	1.30
+++ modules/contact/contact.pages.inc	10 Oct 2009 21:04:11 -0000
@@ -154,6 +154,11 @@ function contact_site_form_submit($form,
 
   flood_register_event('contact');
   watchdog('mail', '%name-from sent an e-mail regarding %category.', array('%name-from' => $values['name'] . " [$from]", '%category' => $contact['category']));
+
+  // Fire the contact form trigger.
+  module_invoke_all('contact', $values);
+
+  // Show message.
   drupal_set_message(t('Your message has been sent.'));
 
   // Jump to home page rather than back to contact page to avoid
@@ -245,6 +250,11 @@ function contact_personal_form_submit($f
 
   flood_register_event('contact');
   watchdog('mail', '%name-from sent %name-to an e-mail.', array('%name-from' => $user->name, '%name-to' => $account->name));
+
+  // Fire the contact form trigger.
+  module_invoke_all('contact', $values);
+
+  // Show message.
   drupal_set_message(t('Your message has been sent.'));
 
   // Back to the requested users profile page.
Index: modules/trigger/trigger.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/trigger/trigger.module,v
retrieving revision 1.50
diff -u -p -r1.50 trigger.module
--- modules/trigger/trigger.module	10 Oct 2009 16:48:38 -0000	1.50
+++ modules/trigger/trigger.module	10 Oct 2009 21:04:12 -0000
@@ -158,6 +158,14 @@ function trigger_trigger_info() {
          'label' => t("When a user's profile is being viewed"),
        ),
      ),
+    'contact' => array(
+      'contact_site' => array(
+        'label' => t('After completing the site contact form'),
+      ),
+      'contact_personal' => array(
+        'label' => t("After completing a user's contact form"),
+      ),
+    ),
    );
  }
 
@@ -604,3 +612,22 @@ function _trigger_get_all_info() {
   return $triggers;
 }
 
+/**
+ * Implement hook_contact().
+ */
+function trigger_contact($values) {
+  // Define hook type.
+  if (isset($values['contact'])) {
+    $hook = 'contact_site';
+  }
+  else {
+    $hook = 'contact_personal';
+  }
+  $aids = trigger_get_assigned_actions($hook);
+  $context = array(
+    'group' => 'contact',
+    'hook' => $hook,
+    'form_values' => &$values,
+  );
+  actions_do(array_keys($aids), (object) $values, $context);
+}