Article to assist with Setup:
What worked for companies using a static IP from their ISP
Authentication: You must be able to configure a user name and password to send email on the device.
Mailbox: You must have a licensed Office 365 mailbox to send email from.
Transport Layer Security (TLS): Your device must be able to use TLS version 1.0 and above.
Port: Port 587 (recommended) or port 25 is required and must be unblocked on your network in your firewall. Some network firewalls or ISPs block ports—especially port 25.
- We recommend adding an SPF record to avoid having messages flagged as spam. If you are sending from a static IP address, add it to your SPF record in your domain registrar’s DNS settings as follows: v=spf1 ipWANIP include:spf.protection.outlook.com ~all
- Sample record before: v=spf1 include:spf.protection.outlook.com ~all
- Sample Record after edited change: v=spf1 ip4:10.5.3.2 include:spf.protection.outlook.com ~all