diff --git a/src/wp-admin/includes/misc.php b/src/wp-admin/includes/misc.php
index ab15762ffa..5416882788 100644
--- a/src/wp-admin/includes/misc.php
+++ b/src/wp-admin/includes/misc.php
@@ -1194,7 +1194,9 @@ function update_option_new_admin_email( $old_value, $value ) {
 	if ( $value == get_option( 'admin_email' ) || ! is_email( $value ) ) {
 		return;
 	}
-
+	if ( '@example.com' === substr( $old_value, -12 ) ) {
+		return;
+	}
 	$hash            = md5( $value . time() . mt_rand() );
 	$new_admin_email = array(
 		'hash'     => $hash,
diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index 7d41b37aef..f55187bd2b 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -6007,7 +6007,9 @@ function wp_site_admin_email_change_notification( $old_email, $new_email, $optio
 	if ( ! $send ) {
 		return;
 	}
-
+	if ( '@example.com' === substr( $old_email, -12 ) ) {
+		return;
+	}
 	/* translators: Do not translate OLD_EMAIL, NEW_EMAIL, SITENAME, SITEURL: those are placeholders. */
 	$email_change_text = __(
 		'Hi,
diff --git a/src/wp-includes/ms-functions.php b/src/wp-includes/ms-functions.php
index 984a69ce6f..9a1f77f28e 100644
--- a/src/wp-includes/ms-functions.php
+++ b/src/wp-includes/ms-functions.php
@@ -2857,7 +2857,9 @@ function wp_network_admin_email_change_notification( $option_name, $new_email, $
 	if ( ! $send ) {
 		return;
 	}
-
+	if ( '@example.com' === substr( $old_email, -12 ) ) {
+		return;
+	}
 	/* translators: Do not translate OLD_EMAIL, NEW_EMAIL, SITENAME, SITEURL: those are placeholders. */
 	$email_change_text = __(
 		'Hi,