diff --git a/SMTP-Configuration.md b/SMTP-Configuration.md
index 668a45f..7e053a5 100644
--- a/SMTP-Configuration.md
+++ b/SMTP-Configuration.md
@@ -84,6 +84,7 @@ StartTLS:
   SMTP_HOST=smtp.gmail.com
   SMTP_PORT=587
   SMTP_SECURITY=starttls
+  SMTP_FROM=<mail-address>
   SMTP_USERNAME=<mail-address>
   SMTP_PASSWORD=<less-secure-app-password>
 ```
@@ -94,6 +95,7 @@ FullSSL:
   SMTP_HOST=smtp.gmail.com
   SMTP_PORT=465
   SMTP_SECURITY=force_tls
+  SMTP_FROM=<mail-address>
   SMTP_USERNAME=<mail-address>
   SMTP_PASSWORD=<less-secure-app-password>
 ```