https://support.office.com/en-us/article/How-to-set-up-a-multifunction-device-or-application-to-send-email-using-Office-365-69f58e99-c550-4274-ad18-c805d654b4c4Original link til artikel
Option 1 (recommended): Authenticate your device or application directly with an Office 365 mailbox, and send mail using SMTP client submission
This option supports most usage scenarios and it's the easiest to set up. Choose this option when:
You want to send email from a third-party hosted application, service, or device.
You want to send email to people inside and outside your organization.
To configure your device or application, connect directly to Office 365 using the SMTP client submission endpoint smtp.office365.com.
Each device/application must be able to authenticate with Office 365. It can have its own sender address, or all devices can use one address, such as
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How to set up SMTP client submission
Enter the following settings directly on your device or in the application as their guide instructs (it might use different terminology than this article). As long as your scenario meets the requirements for SMTP client submission, the following settings will enable you to send email from your device or application.
Device or Application setting
Value
Server/smart host
smtp.office365.com
Port
Port 587 (recommended) or port 25
TLS/ StartTLS
Enabled
Username/email address and password
Enter the sign in credentials of the hosted mailbox being used
