diff --git a/README.md b/README.md
index 3f289a2..d48cea2 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ specifics for everything
 | `A`   | `mail`    | `<ip>`                      | webmail                    |
 | `A`   | `git`     | `<ip>`                      | gitea                      |
 | `CAA` | `@`       | `0 issue "letsencrypt.org"` | allow caddy to issue certs |
+| `MX`  | `@`       | `post.atom.town` / `10`     | mail record                |
 
 ### caddy