---
title: "SMTP server"
description: "Set up the SMTP server in Sapera so the system can send emails such as order confirmations, customer messages, signature invitations and payment links."
url: https://support.sapera.io/en/articles/198-smtp-server
collection: "Communication"
updated: 2026-06-11
language: en
alternates: [da]
---

# SMTP server

Set up the SMTP server in Sapera so the system can send emails such as order confirmations, customer messages, signature invitations and payment links.

In Sapera the SMTP server is used for all email sending from the system — for example order confirmations, customer messages, signature invitations and payment links. On this screen you specify which mail server Sapera should send through, as well as any login and encryption. Without a filled-in SMTP server, Sapera cannot send emails.

The settings can be set per store (organizational unit) if different stores need to send from different senders or servers.

## How to find the setting

Open **Financial** from the menu in the top left corner, and go to **Setup → Settings → Communication → SMTP Server**.

Changing these settings requires the necessary setup permissions. If you do not have access, contact your administrator.

## Server connection

**SMTP Server Address:** The address (IP or domain) of the SMTP server to be used for sending emails. The field is mandatory — if it is empty, Sapera cannot send emails. By default the field is empty.

**Port Number:** Port number for the SMTP server. Typically 25, 465 or 587 depending on the selected encryption method. By default the field is empty.

## Authentication

**SMTP Server Login:** Username for the SMTP account Sapera should log in with. Can be left empty if the mail server does not require authentication. By default the field is empty.

**SMTP Server Password:** The password for the SMTP user. Can be left empty if the mail server does not require authentication. By default the field is empty.

## Encryption

**Secure Socket Options:** Selects the encryption method for the connection to the SMTP server. The default value is **None**. The possible values are:

### None

No encryption is used. This is the default value.

### Auto

The most suitable encryption method is selected automatically based on port and server.

### SslOnConnect

The connection is SSL/TLS encrypted from the start. Typically used with port 465.

### StartTls

The connection is first established unencrypted and then upgraded to TLS. Typically used with port 587. The connection fails if the server does not support TLS.

### StartTlsWhenAvailable

TLS is used if the server supports it — otherwise the connection continues unencrypted.

## Sender

**Outgoing Email address:** The email address used as the sender on outgoing emails from Sapera. If the field is not filled in, a default sender configured by Cloud Retail Systems is used. It is recommended to specify the store's own address here, so recipients see the correct sender. By default the field is empty.

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**Want to know more?**

Read more in these related articles:

[

Communication settings

Overview of the Communication settings categories in Sapera

](https://support.sapera.io/en/articles/424.md)