Enabling OAuth 2.0 Authentication for Ricoh Products

Once basic authentication is phased out, the following features will be impacted, resulting in errors when attempting to send emails:

• Scan Function (Send to Email)
• Internet Fax (Send)
• Fax-to-Email Forwarding
• On-demand Email Notification
  (Function to check device status via email)
• Auto Email Notification
  (Function to send error reports to the administrator’s email)
• Sending error notifications when using Mail to Print

To address this change, firmware updates supporting OAuth 2.0 authentication will be released starting July 2025. Release schedules will vary by product model. Please refer to the Compatible Models and Support Schedule section for specific details.

This FAQ document answers common questions, explains technical impacts, and outlines Ricoh’s solutions to support your transition from Basic Authentication to OAuth 2.0 for Microsoft Exchange Online:

OAuth 2.0 Support FAQ

For devices that do not support automatic firmware updates—or where automatic updates have not been enabled—the firmware needs to be manually updated using the RICOH Firmware Update Tool.

To search for a firmware update for your device, please visit the Downloads section below (Note: click the Firmware tab in the search results to view the available updates): 

Downloads

Following the update, authentication settings must be configured via Web Image Monitor.

For detailed setup instructions, please consult the guide below:

Guide to Set Up OAuth2.0 Authentication for Microsoft Exchange Online Email

Please note that the applicable guideline varies by product list. Refer to section 4, “Compatible Models and Support Schedule” to confirm which list your device is included in and follow the corresponding guideline.

For products in Table 1:  Guide to set up OAuth 2.0 authentication for sending Microsoft Exchange Online email

For products in Table 2:  Guide to set up OAuth 2.0 authentication for sending Microsoft Exchange Online email 

For helpful video instructions, please refer to the Videos Tutorials section.

Once support for basic authentication for SMTP in Exchange Online has ended, and until firmware supporting OAuth 2.0 becomes available for your product, you may need to temporarily switch to alternative communication methods or use an email service other than Exchange Online.

Identifying Device IP Address via Smart Operation Panel

Setting up Web Image Monitor and Updating Device Firmware

Setting Administrator Email Address in Web Image Monitor

Specifying SMTP Settings in Web Image Monitor

Supported Product/Model and availability schedule have been updated, with additional products supporting OAuth2.0 for Exchange Online listed in Table 2. (as of January 30, 2026).

Table1. Products with released firmware supporting OAuth2.0 for Exchange Online

Table 2. Additional products now supporting OAuth2.0 for Exchange Online

*Smart Operation Panel

Ricoh Firmware Update Tool does not support the following Product/Model. Please contact your local Ricoh representative to obtain the updated firmware.

• Limited Support Scope
  Products that are not listed in the Compatible Models and Support Schedule section will not be supported.
• Authentication Requirements
  To enable email sending using OAuth 2.0, users must install the appropriate firmware and configure settings via Web Image Monitor.
• Administrator Email Requirement
  When using OAuth 2.0 authentication, an administrator email address must be registered. This email will act as the sender for scanner functions, error notifications, and as the "From" address for SMTP authentication.

For guidance on sending emails from printers and similar devices using Microsoft 365—including alternative methods that do not require SMTP authentication—please refer to the following Microsoft article:

• Fix issues with printers, scanners, and LOB apps that send email using Microsoft 365 (Microsoft Tech Community) 

To read Microsoft’s announcement on ending support for basic authentication for SMTP authentication in Exchange Online, please visit the following link:

• Exchange Online to Retire Basic Authentication for Client Submission (SMTP AUTH)

Please contact your local Ricoh representative or dealer if you have any queries.

We appreciate your understanding and cooperation as we work to ensure continued functionality and compliance across Ricoh devices.

* Company and product names are trademarks or registered trademarks of their respective companies.