---
title: "Step 1. Configure SMTP Server Settings"
description: "To deliver email notifications, Veeam ONE needs an SMTP server. To configure SMTP settings: Open Veeam ONE Client. For details, see Accessing Veeam ONE Components. In the main menu, click Settings > Server Settings."
canonical: "https://helpcenter.veeam.com/docs/one/userguide/configure_smtp_server.html"
breadcrumb: "User Guide > Working with Alarms > Configuring Alarms > Configuring Alarm Notifications > Configuring Email Notifications > Step 1. Configure SMTP Server Settings"
dateModified: "2026-10-23"
---

# Step 1. Configure SMTP Server Settings

To deliver email notifications, Veeam ONE needs an SMTP server.

To configure SMTP settings:

1. Open Veeam ONE Client.

   For details, see [Accessing Veeam ONE Components](access.md).

2. In the main menu, click **Settings** > **Server Settings**.

   Alternatively, you can press `[CTRL` + `S]` on the keyboard.

3. In the **Server Settings** window, open the **Mail Server Settings** tab.
4. Select the **Enable email notifications** check box.
5. From the drop-down list, select **Custom SMTP (Basic authentication)**.
6. In the **SMTP server** field, specify DNS name or IP address of the SMTP server that must be used for sending email notifications.

   The default SMTP port number is `25`.

7. In the **From** field, enter an email address of the notification sender.

   This email address will be displayed in the **From** field of the email header.

8. To configure additional settings, click **Advanced**:

   1. In the **Timeout** field, specify server connection timeout in milliseconds.
   2. In the **Port** field, change the default SMTP communication port if required.
   3. For SMTP server with SSL support, select **Connect using SSL** to enable SSL data encryption.
   4. If your SMTP server requires authentication, select the **Use authentication** check box and specify authentication credentials in the **Login** and **Password** fields.
   5. Click **OK**.

[![Configure SMTP Server Settings](images/smtp_server_settings.png "Configure SMTP Server Settings")](images/smtp_server_settings.png){.toggle scale=71}

## Sending Test Email

To check whether you have specified SMTP settings correctly, you can send out a test email:

1. Click **Send Test Email**.
2. In the **Test Email Settings** window, specify an email address to which a test notification must be sent.
3. Click **OK**.

The test email will be sent to the specified email address. Veeam ONE will notify you whether the message was successfully sent.

[![Send Test Email](images/smtp_server_settings_test.png "Send Test Email")](images/smtp_server_settings_test.png){.toggle scale=70}