added email options in application.env section

install.sh

@@ -96,6 +96,18 @@ SMTP_SERVER=localhost
 SMTP_PORT=587
 SMTP_FROM_ADDRESS=notifications@example.org
 
+#SMTP_SERVER=smtp.example.com
+#SMTP_PORT=465
+#SMTP_LOGIN=mastodon@example.com
+#SMTP_PASSWORD=long_password
+#SMTP_AUTH_METHOD=plain
+#SMTP_SSL=true
+#SMTP_ENABLE_STARTTLS_AUTO=true
+#SMTP_OPENSSL_VERIFY_MODE=none
+#SMTP_FROM_ADDRESS=mastodon@example.com
+#SMTP_DELIVERY_METHOD=smtp
+#SMTP_DOMAIN=localhost
+
 # secrets
 SECRET_KEY_BASE=$SECRET_KEY_BASE
 OTP_SECRET=$OTP_SECRET