---
title: "📋 System: Setting up a custom SMTP relay for deliveries and notifications"
url: "https://support.ftapi.com/en/article/system-eigenes-smtp-relay-fur-zustellungen-und-benachrichtigungen-einrichten"
language: "en"
last_updated: "2026-06-22T07:11:37.689Z"
---

# 📋 System: Setting up a custom SMTP relay for deliveries and notifications

This article explains the prerequisites for using a custom SMTP relay for system notifications and deliveries and lists the necessary configuration details for FTAPI support.

The FTAPI server uses a predefined SMTP relay for delivery and system notifications.

It is possible to use your own SMTP relay. However, there are a few aspects to consider:

## Prerequisites and notes on using a custom SMTP relay

-   For reliable email transmission, a valid **SPF record** as well as **DMARC/DKIM** should be in place for the SMTP relay.
-   The server sends system notifications via a dedicated sender address (default: `notify@ftapi.com`).
-   The server sends deliveries using the sender's email address. The relay must therefore allow sending messages for both internal senders (e.g., `@<your-domain.de>`) and external domains (e.g., `@gmail.com`, `@gmx.net`).
-   If this is not possible or desired, so-called "**spoofing**" can be activated on the FTAPI server for all or for external senders. This ensures that the dedicated sender is used for both system notifications and deliveries.

![](https://cdn-assets.productfruits.com/a8e0fe32-d052-4838-afa8-01f5b57fd92d)

## Required information for FTAPI support

To set up a custom SMTP relay, FTAPI support requires the following information:

-   FQDN of the email server
-   SMTP username
-   SMTP password
-   SMTP port
-   Encryption used (TLS, STARTTLS)

## **Related articles**

> #### [**📋 Email delivery: Emails are not arriving or are landing in spam (DNS configuration)**](https://support.ftapi.com/de/article/warum-kommen-meine-mails-nicht-an-oder-landen-im-spam)