diff --git a/README.md b/README.md
index bca03a2..5041cbf 100644
--- a/README.md
+++ b/README.md
@@ -29,10 +29,8 @@ An ActivityPub-federated video streaming platform using P2P directly in your web
 
 ## Email
 
-1. Deploy [`coop-cloud/postfix-relay`]
-2. `abra app YOURAPPDOMAIN config`, and uncomment the email lines; change
-   `PEERTUBE_SMTP_FROM` to make sure the domain is the same as `postfix-relay`'s
-   `$DOMAIN` or in its `$EXTRA_SENDER_DOMAINS`
+1. Deploy [`coop-cloud/postfix-relay`] or use an external SMTP relay
+2. `abra app YOURAPPDOMAIN config`, and uncomment the email lines and adjust as needed
 3. `abra app YOURAPPDOMAIN deploy`
 
 [`abra`]: https://git.autonomic.zone/autonomic-cooperative/abra