Updated: Ricoh’s Response to Basic Authentication Phase-Out in Microsoft Exchange Online SMTP Authentication

24 Jul 2025

Thank you for using Ricoh products and services.

Microsoft has announced that basic authentication for sending email using the SMTP protocol in Microsoft Exchange Online will be discontinued after March 2026*. Following this change, OAuth 2.0 authentication will be required to send emails using SMTP authentication through Exchange Online.

*On 11 June 2025, Microsoft updated the timeline for the planned phase-out, which was previously scheduled for September 2025.

We would like to share information about the Ricoh product functions affected by this change and our support schedule for OAuth 2.0.

1. Affected Functions 

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

2. Ricoh’s Response

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 section 3. OAuth 2.0 Compatible Models and Support Schedule for specific details.

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

For detailed setup instructions, please consult the guide below:

Ricoh Firmware Update Tool

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

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.

3. OAuth2.0 Authentication Compatible Models and Support Schedule

The list of supported products and firmware update availability schedule have been updated as of July 24, 2025.

CategoryProduct/ModelFirmware update availability schedule (using RICOH Firmware Update Tool)
Colour MFPIM C6510/C8010Mid-September
IM C6500/C8000Early September
IM C7010Early August
IM C3010SD/C3510SD/C4510SD/C6010SDMid-August
IM C2010/C2510/C2510J/C3010/C3510/
C3519J/C4510/C5510/C6010
Early August
IM C2000/C2500/C2509J/C3000/C3500/
C3509J/C4500/C5500/C6000
Mid-August
IM C2501CE/C3501CE/C5501CEEarly September
IM C530F/C530FBMid-September
IM C401F/C401SRFEarly September
IM C300/C300F/C400F/C400SRF/C400SRFGEarly September
IM C320FTBD
IM CW2200Late September
M C2501Late October 
MP C6503/C8003Early July
MP C2004/C2094J/C2504/C2594J/C3004/C3504/C4504/C5504/C6004Late August
MP C2004ex/C2094exJ/C2504ex/C3004ex/C3504ex/C4504ex/C5504ex/C6004exLate August
MP C4503/C5503/C6003* without Smart Operation PanelLate August
MP C4503/C5503/C6003* with Smart Operation PanelLate August
MP C3003/C3503* without Smart Operation PanelMid-August
MP C3003/C3503* with Smart Operation PanelMid-August
MP C2003/C2003Z/C2503/C2503Z* without Smart Operation PanelEarly September
MP C2003/C2003Z/C2503/C2503Z* with Smart Operation PanelEarly September
MP C501Late October
MP C401/C401SR * with Smart Operation PanelEarly October
MP C401/C401SR * without Smart Operation PanelMid-October
MP C307/C407Mid-August
MP C306
Early September
MP CW2201Late October
SP C360SFNw/C361SFNwEarly September
IP CW2200Early November
Monochrome MFPIM 7000/8000/9000Early September
IM 2500/2509J/3000/3009J/3500/
3509J/4000/5000/6000
Mid-August
IM 2702Early September
IM 550F/600F/600SRF/600SRFGLate August
IM 370/460/460FTLTBD
IM 350/IM 430Mid-August
MP 6503/7503/9003Early September
MP 2555/3055/3555/4055/5055/6055Mid-August
MP 2554/3054/3554/4054/5054/6054* without Smart Operation PanelMid-September
MP 2554/3054/3554/4054/5054/6054* with Smart Operation PanelEarly October
MP 2001/2501Late October
MP 501/601Early September
MP 402SPFMid-August
MP 305+SP/305+SPFMid-September
Aficio MP6002/7502/9002Early October
Aficio MP 301Early-October
MP W7100/8140Late October
MP W6700SPLate October
Colour PrinterIP C8500Mid-September
P C600Mid-November
P C375Early September
SP C840DN/C842DNMid-November
SP C360DNwMid-November
SP C340DN/C342DNEarly November
SP C333DNMid-November
Monochrome PrinterSP 8400DNLate October
SP 5300/5310Mid-November
P 800/801Early November
P 501/502Late October
Production CutsheetPro C9200/C9210Early October
Pro 8400S/8410S/8420SMid-August
Pro 8410/8420Mid-September
Pro 8300S/8310S/8320SMid-August
Pro 8310/8320Mid-October
Pro C7200S/7210S/7200SX/7210SXMid-August
Pro C7200/C7210/C7200X/C7210XMid-October
Pro C5400S/5410SMid-August
Pro C5400SLMid-August
Pro C5300S/C5310SMid-August
Pro C5300SLMid-August
Pro C5200S/C5210SEarly July
Ricoh Smart Operation Panel*Smart Operation Panel

4. Important Notices

  • Limited Support Scope
    Products that are not listed in 3. OAuth 2.0 Authentication Compatible Models and Support Schedule 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.

5. Related Information

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:

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

6. Contact Information 

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.