diff --git a/mailchimp.module b/mailchimp.module
index 7e0749e..43f2797 100644
--- a/mailchimp.module
+++ b/mailchimp.module
@@ -250,7 +250,13 @@ function mailchimp_get_api_object() {
  *   An array of list arrays.
  */
 function mailchimp_get_lists($list_ids = array(), $reset = FALSE) {
-  $cache = $reset ? NULL : cache_get('mailchimp_lists');
+  $cid = 'mailchimp_lists';
+  if (module_exists('domain')) {
+    global $_domain;
+    $cid .= ':'.$_domain['machine_name'];
+  }
+
+  $cache = $reset ? NULL : cache_get($cid);
   $lists = array();
   // Return cached lists:
   if ($cache) {
@@ -274,7 +280,7 @@ function mailchimp_get_lists($list_ids = array(), $reset = FALSE) {
     }
     uasort($lists, '_mailchimp_list_cmp');
 
-    cache_set('mailchimp_lists', $lists, 'cache', CACHE_TEMPORARY);
+    cache_set($cid, $lists, 'cache', CACHE_TEMPORARY);
   }
 
   // Filter by given ids:
@@ -305,7 +311,7 @@ function mailchimp_get_list($list_id) {
 
 /**
  * Get the MailChimp memberinfo for a given email address and list.
- * 
+ *
  * Results are cached in the cache_mailchimp_user bin which is cleared by the MC
  * web hooks system when needed.
  *
@@ -500,7 +506,7 @@ function mailchimp_get_campaign_data($campaign_id, $reset = FALSE) {
 
 /**
  * Wrapper around MCAPI::campaignsForEmail().
- * 
+ *
  * Returns all IDs of campaigns that have included a given email address.
  *
  * @string $email
diff --git a/modules/mailchimp_lists/includes/mailchimp_lists.admin.inc b/modules/mailchimp_lists/includes/mailchimp_lists.admin.inc
index 61bed91..14a8647 100644
--- a/modules/mailchimp_lists/includes/mailchimp_lists.admin.inc
+++ b/modules/mailchimp_lists/includes/mailchimp_lists.admin.inc
@@ -12,6 +12,15 @@ function mailchimp_lists_overview_page() {
   $lists = mailchimp_lists_load_multiple();
   $rows = array();
   $roles = user_roles();
+  if (module_exists('domain')) {
+    global $_domain;
+    $domain_id = $_domain['domain_id'];
+    foreach ($lists as $key => $list) {
+      if ($list->domain_id != $domain_id) {
+        unset($lists[$key]);
+      }
+    }
+  }
   foreach ($lists as $list) {
     $mc_list = mailchimp_get_list($list->mc_list_id);
     $actions = array(
@@ -70,7 +79,14 @@ function mailchimp_lists_overview_page() {
  * Page for the refresh mailchimp_lists function.
  */
 function mailchimp_lists_refresh_page() {
-  cache_clear_all('mailchimp_lists', 'cache');
+  $cid = 'mailchimp_lists';
+  if (module_exists('domain')) {
+    global $_domain;
+    $cid .= ':'.$_domain['machine_name'];
+  }
+
+  cache_clear_all($cid, 'cache');
+
   drupal_set_message(t('Mailchimp Lists refreshed'), 'status');
   // Return render array.
   return array(
@@ -140,7 +156,7 @@ function mailchimp_lists_list_form($form, &$form_state, MailchimpList $list = NU
     '#type' => 'fieldset',
     '#title' => t('Form & Subscribe Block Options'),
   );
- 
+
   $lists = mailchimp_get_lists();
   $options = array('' => t('-- Select --'));
   foreach ($lists as $mc_list) {
@@ -514,6 +530,11 @@ function mailchimp_lists_list_form_submit($form, &$form_state) {
     'required' => $form_state['values']['required'],
   );
 
+  if (module_exists('domain')) {
+    global $_domain;
+    $list->domain_id = $_domain['domain_id'];
+  }
+
   if ($ret = mailchimp_lists_save($list)) {
     drupal_set_message(t('List @name has been saved.',
       array('@name' => $list->label)));
diff --git a/modules/mailchimp_lists/mailchimp_lists.install b/modules/mailchimp_lists/mailchimp_lists.install
index aa85e59..d4dc3e1 100644
--- a/modules/mailchimp_lists/mailchimp_lists.install
+++ b/modules/mailchimp_lists/mailchimp_lists.install
@@ -34,6 +34,13 @@ function mailchimp_lists_schema() {
         'length' => 32,
         'description' => 'The MailChimp list id associated with this list.',
       ),
+      'domain_id' => array(
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+        'default' => 0,
+        'description' => 'Domain numeric id.',
+      ),
       'label' => array(
         'type' => 'varchar',
         'length' => 32,
@@ -424,3 +431,41 @@ function mailchimp_lists_update_7206() {
   db_drop_field('mailchimp_lists', 'updated');
   drupal_get_schema('mailchimp_lists', TRUE);
 }
+
+/**
+ * Add domain_id field.
+ */
+function mailchimp_lists_update_7207() {
+
+  // Add the domain_id field.
+  if (!db_field_exists('mailchimp_lists', 'domain_id')) {
+    db_add_field('mailchimp_lists', 'domain_id', array(
+      'type' => 'int',
+      'unsigned' => TRUE,
+      'not null' => TRUE,
+      'default' => 0,
+      'description' => 'Domain numeric id.',
+    ));
+  }
+
+  // Add current lists to default domain
+  if (module_exists('domain')) {
+    $domain_default_id = domain_default_id();
+    // Generate a machine name for existing lists.
+    $lists = db_select('mailchimp_lists', 'm')
+      ->fields('m')
+      ->execute()
+      ->fetchAll();
+
+    foreach ($lists as $list) {
+      $list->name = strtolower(str_replace(' ', '_', $list->label));
+      db_update('mailchimp_lists')
+        ->fields(array('domain_id' => $domain_default_id))
+        ->condition('id', $list->id)
+        ->execute();
+    }
+
+  }
+
+  cache_clear_all();
+}