diff --git a/README.md b/README.md
index f945e69..71f4786 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,16 @@ You can find default values in [config/defaults.go](config/defaults.go)
 
 The following configuration is needed only if you want to send outgoing emails via Postmoogle (it's not necessary if you only want to receive emails).
 
+<details>
+<summary>TL;DR</summary>
+
+1. Configure DMARC record
+2. Configure SPF record
+3. Configure MX record
+4. Configure DKIM record (use `!pm dkim`)
+
+</details>
+
 **First**, add a new DMARC DNS record of the `TXT` type for subdomain `_dmarc` with a proper policy. The simplest policy you can use is: `v=DMARC1; p=quarantine;`.
 
 <details>