diff --git a/cookbook/email/dev_environment.rst b/cookbook/email/dev_environment.rst
index 45719625773..bf16761a78b 100644
--- a/cookbook/email/dev_environment.rst
+++ b/cookbook/email/dev_environment.rst
@@ -119,6 +119,8 @@ the replaced address, so you can still see who it would have been sent to.
     These are ``X-Swift-Cc`` and ``X-Swift-Bcc`` for the ``CC`` and ``BCC``
     addresses respectively.
 
+.. _sending-to-a-specified-address-but-with-exceptions:
+
 Sending to a Specified Address but with Exceptions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/reference/configuration/swiftmailer.rst b/reference/configuration/swiftmailer.rst
index 3aaf52b858a..d9614377bb3 100644
--- a/reference/configuration/swiftmailer.rst
+++ b/reference/configuration/swiftmailer.rst
@@ -32,6 +32,7 @@ Configuration
     * `threshold`_
     * `sleep`_
 * `delivery_address`_
+* `delivery_whitelist`_
 * `disable_delivery`_
 * `logging`_
 
@@ -156,6 +157,15 @@ emails sent during development go to a single account.
 This uses ``Swift_Plugins_RedirectingPlugin``. Original recipients are available
 on the ``X-Swift-To``, ``X-Swift-Cc`` and ``X-Swift-Bcc`` headers.
 
+delivery_whitelist
+~~~~~~~~~~~~~~~~~~
+
+**type**: ``array``
+
+Used in combination with ``delivery_address``. If set, emails matching any of these
+patterns will be delivered like normal, instead of being sent to ``delivery_address``.
+For details, see :ref:`the cookbook entry. <sending-to-a-specified-address-but-with-exceptions>`
+
 disable_delivery
 ~~~~~~~~~~~~~~~~