diff --git a/plugins/wporg-5ftf/includes/contributor.php b/plugins/wporg-5ftf/includes/contributor.php
index 36500c4..fabb36f 100644
--- a/plugins/wporg-5ftf/includes/contributor.php
+++ b/plugins/wporg-5ftf/includes/contributor.php
@@ -135,7 +135,7 @@ function populate_list_table_columns( $column, $post_id ) {
  * @param int   $pledge_id    The post ID of the pledge.
  * @param array $contributors Array of contributor wporg usernames.
  *
- * @return void
+ * @return array List of the new contributor post IDs, mapped from username => ID.
  */
 function add_pledge_contributors( $pledge_id, $contributors ) {
 	$results = array();
@@ -162,6 +162,8 @@ function add_pledge_contributors( $pledge_id, $contributors ) {
 	 *                            or an error code on failure.
 	 */
 	do_action( FiveForTheFuture\PREFIX . '_add_pledge_contributors', $pledge_id, $contributors, $results );
+	
+	return $results;
 }
 
 /**
diff --git a/plugins/wporg-5ftf/includes/endpoints.php b/plugins/wporg-5ftf/includes/endpoints.php
index 850072b..a0d8af3 100644
--- a/plugins/wporg-5ftf/includes/endpoints.php
+++ b/plugins/wporg-5ftf/includes/endpoints.php
@@ -39,6 +39,7 @@ function handler() {
 			break;
 
 		case 'add-contributor':
+			$pledge = get_post( $pledge_id );
 			$new_contributors = PledgeForm\parse_contributors( $_POST['contributors'] );
 			if ( is_wp_error( $new_contributors ) ) {
 				wp_die( wp_json_encode( [
@@ -46,7 +47,12 @@ function handler() {
 					'message' => $new_contributors->get_error_message(),
 				] ) );
 			}
-			Contributor\add_pledge_contributors( $pledge_id, $new_contributors );
+			$contributor_ids = Contributor\add_pledge_contributors( $pledge_id, $new_contributors );
+			if ( 'publish' === $pledge->post_status ) {
+				foreach ( $contributor_ids as $contributor_id ) {
+					PledgeForm\send_contributor_confirmation_emails( $pledge_id, $contributor_id );
+				}
+			}
 
 			// Fetch all contributors, now that the new ones have been added.
 			$contributors = Contributor\get_pledge_contributors_data( $pledge_id );