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Can I use Microsoft Office 365 as SMTP relay server for PRTG email delivery?



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I would like to use Office 365 for SMTP delivery instead of the built-in email relay server. How do I have to set up the notification delivery settings in PRTG to send emails via Office 365?

email-delivery email-notifications office365 prtg smtp smtp-relay-server

Created on Aug 16, 2017 12:12:03 PM by  Gerald Schoch [Paessler Support]

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This article applies to PRTG Network Monitor 17 or later

Use Microsoft Office 365 for PRTG SMTP Delivery

You can send out email notifications from PRTG with Office 365 as SMTP relay server if you do not want to use the built-in SMTP relay server for direct email delivery.

Microsoft provides a guide in the Office 365 documentation for this purpose that we have successfully tested: How to set up multifunction device or application to send email using Office 365

To set up PRTG email delivery with Office 365, provide Notification Delivery settings in PRTG as we outline below.

Settings in PRTG for Office 365 as SMTP Relay

  1. Open the PRTG web interface with a browser.
  2. From the main menu bar, select Setup | System Administration | Notification Delivery.
  3. In section SMTP Delivery, use the following settings.
    1. SMTP Delivery Mechanism: Use SMTP relay server
    2. Sender Email and Sender Name: Enter the email address and the name that will appear as sender of your email notifications.
    3. HELO Ident: We recommend that you use the DNS name of your PRTG server.
    4. SMTP Relay Server:
    5. Port: 587 (or port 25)
    6. SMTP Relay Authentication: Use standard SMTP authentication
    7. SMTP Relay User and SMTP Relay Password: Enter the credentials for the mailbox that you use with Office 365.
    8. Use Encrypted Connection: If supported by server
    9. SSL Method: TLS V1 or above
  4. Save your settings.
  5. Test the SMTP delivery of email notifications.
    1. Open Setup | Account Settings | Notifications from the main menu bar in the PRTG web interface.
    2. Look for an email notification for which you are defined as a receiver (for example, the default notification Email and push notification to admin).
    3. Click the Test button.
    4. Check your mailbox for the test notification.

PRTG SMTP Relay with Office 365
SMTP Delivery Settings in PRTG for Office 365


Can Gmail / Google Apps be used for SMTP relay?

Created on Aug 16, 2017 12:18:04 PM by  Gerald Schoch [Paessler Support]

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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.