Dear Nicole Harris,
When moving from Google Workspace to Microsoft 365, multifunction printers and scanners that send documents via email often stop working because they were configured to relay through Google’s SMTP servers. Microsoft 365 requires using its own SMTP endpoint smtp.office365.com on port 587 with TLS enabled, and the device must authenticate with a valid Microsoft 365 mailbox account. Many scanners only support basic SMTP without modern authentication, so if your device cannot handle TLS with username and password, you will need to configure an SMTP relay connector in Exchange Online that allows the device to send through your organization’s tenant.
The first step is to check whether the scanner supports SMTP with TLS and authentication. If it does, configure it with smtp.office365.com, port 587, and the credentials of a licensed mailbox. If it does not, set up an Exchange Online connector that allows relay from the scanner’s IP address, and point the device to your organization’s MX record instead. This ensures mail is accepted securely and routed through Microsoft 365. If you are unsure which option your device supports, reviewing the scanner’s manual or firmware release notes will clarify, and from there you can decide whether direct SMTP or relay connector is the correct path.
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