diff --git a/wp-includes/class-wp-phpmailer.php b/wp-includes/class-wp-phpmailer.php
index ce71eec458..cc21e6b88c 100644
--- a/wp-includes/class-wp-phpmailer.php
+++ b/wp-includes/class-wp-phpmailer.php
@@ -48,7 +48,7 @@ class WP_PHPMailer extends PHPMailer\PHPMailer\PHPMailer {
 				'php.ini'
 			),
 			'connect_host'         => __( 'SMTP Error: Could not connect to SMTP host.' ),
-			'data_not_accepted'    => __( 'SMTP Error: data not accepted.' ),
+			'data_not_accepted'    => __( 'SMTP Error: Data not accepted.' ),
 			'empty_message'        => __( 'Message body empty' ),
 			/* translators: There is a space after the colon. */
 			'encoding'             => __( 'Unknown encoding: ' ),
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5e2cb0439d..aa0b5d1d9d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60418';
+$wp_version = '6.9-alpha-60419';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.