diff --git a/.env.example b/.env.example
index 31c0efb3..f1f94955 100644
--- a/.env.example
+++ b/.env.example
@@ -12,3 +12,10 @@ LITESTREAM_BUCKET='my-bucket-name'                           # Replace
 
 # TMDB API key.
 SJ_TMDB_API=''
+
+# Optional SMTP settings
+SJ_SMTP_HOST=''
+SJ_SMTP_PORT=''
+SJ_SMTP_USERNAME=''
+SJ_SMTP_PASSWORD=''
+SJ_BASE_URL=''