diff --git a/.envrc.sample b/.envrc.sample
index 43b68a1..10885c3 100644
--- a/.envrc.sample
+++ b/.envrc.sample
@@ -30,5 +30,7 @@ export DB_PASSWORD_VERSION=v1
 # SMTP
 #export COMPOSE_FILE="compose.yml:compose.mailrelay.yml"
 #export SMTP_HOST="postfix_relay_app"
+#export MAIL_FROM="wordpress@example.com"
+#
 #export MSMTP_CONF_VERSION=v1
 #export ENTRYPOINT_MAILRELAY_CONF_VERSION=v1