diff --git a/webapp/mimemail.py b/webapp/mimemail.py
index e2fa7965..425037e0 100644
--- a/webapp/mimemail.py
+++ b/webapp/mimemail.py
@@ -43,6 +43,7 @@ def send_mail(subject, msg, to, to_name=None):
     else:
         message["To"] = formataddr((Config.TO_NAME, Config.TO))
 
+    message.add_header("X-SES-CONFIGURATION-SET", "edi-dedicated")
     part = MIMEText(msg, "plain")
     message.attach(part)