diff --git a/docs/en/02_Developer_Guides/10_Email/index.md b/docs/en/02_Developer_Guides/10_Email/index.md
index d65e7e967..78c3a8d86 100644
--- a/docs/en/02_Developer_Guides/10_Email/index.md
+++ b/docs/en/02_Developer_Guides/10_Email/index.md
@@ -18,9 +18,14 @@ SilverStripe\Core\Injector\Injector:
   Swift_Transport: Swift_SendmailTransport
 ```
 
-For example, to use SMTP:
+For example, to use SMTP, create a file mysite/_config/email.yml:
 
 ```yml
+---
+Name: myemailconfig
+After:
+  - '#emailconfig'
+---
 SilverStripe\Core\Injector\Injector:
   Swift_Transport:
     class: Swift_SmtpTransport