This article applies as of PRTG 25
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 that we successfully tested: How to set up a multifunction device or application to send email using Microsoft 365 or Office 365.
ℹ Microsoft plans to retire Basic Authentication for Client Submission, or SMTP AUTH, for Exchange Online as means to increase security. For Microsoft Office 365 users, you have the option to use High Volume Email for Microsoft 365 or to set up an SMTP relay using Azure Communication Services (ASC).
For more information on how to set up ACS to use with PRTG, see the Knowledge Base: How can I use SMTP without Microsoft Exchange Online basic authentication?.
Configure PRTG to use Office 365 as an SMTP relay server
- Open the PRTG web interface.
- From the main menu bar, select Setup | System Administration | Notification Delivery.
- In section SMTP Delivery, use the following settings:
| Setting | Description |
|---|---|
| SMTP Delivery Mechanism | Use SMTP relay server (recommended in LANs/NATs) |
| Sender Email and Sender Name | Enter the email address and the name that will appear as sender of your email notifications. |
| HELO Ident | We recommend that you use the DNS name of your PRTG server. |
| SMTP Relay Server | smtp.office365.com |
| SMTP Relay SMTP Port | 587 (or port 25) |
| SMTP Relay Authentication | Use standard SMTP authentication |
| SMTP Relay User and SMTP Relay Password | Enter the credentials for the mailbox that you use with Office 365. |
| Connection Security | Use SSL/TLS if the server supports it (default) |
| SSL/TLS Method | TLS 1.2 or any encryption method supported by Microsoft Office 365 |
- Save your settings.
Test the SMTP delivery of email notifications
- Open Setup | Account Settings | Notification Templates from the main menu bar in the PRTG web interface.
- Look for an email notification where you are defined as a receiver (for example, the default notification Email to Admin).
- Click Test SMTP Settings.
- Check your mailbox for the test notification.
More
Knowledge Base
- Can Gmail / Google Apps / G-Suite be used for SMTP relay?
- How can I use SMTP without Microsoft Exchange Online basic authentication?
PRTG Manual
