diff --git a/Documentation/config-mail.txt b/Documentation/config-mail.txt
index 62d0219..da213a8 100644
--- a/Documentation/config-mail.txt
+++ b/Documentation/config-mail.txt
@@ -28,6 +28,12 @@
 to a change being abandoned.  It is a `ChangeEmail`: see `ChangeSubject.vm` and
 `ChangeFooter.vm`.
 
+=== AddKey.vm
+
+The `AddKey.vm` template will determine the contents of the email related to
+SSH and GPG keys being added to a user account. This notification is not sent
+when the key is administratively added to another user account.
+
 === ChangeFooter.vm
 
 The `ChangeFooter.vm` template will determine the contents of the footer