Fix Microsoft 365 Scan to Email on Lexmark MX710 Printer
Question details
The user needs to restore the Scan to Email functionality on a Lexmark MX710 printer that stopped working due to Microsoft 365 security and authentication updates.
- Product
- Microsoft 365 and Lexmark MX710
- Device & OS
- not provided
- Scenario
- Attempting to use the hardware Scan to Email feature on a Lexmark printer configured with a Microsoft 365 Exchange account.
- Observed behavior
- The Scan to Email feature fails to send emails from the printer, even though the same Microsoft 365 account works normally in Outlook.
Ensure you have the IP address of your Lexmark MX710 to access its Embedded Web Server (EWS) and have administrator access to your Microsoft 365 Exchange Admin Center.
Configure SMTP AUTH Client Submission
Use this method if your printer supports TLS version 1.2 and you want to send emails to both internal and external recipients.
Microsoft 365 has disabled Basic Authentication for most tenants. To use SMTP AUTH, you must either enable it for the specific mailbox used by the printer or use an App Password if Multi-Factor Authentication (MFA) is enabled.
Go to the Microsoft 365 Admin Center, navigate to Active users, select the user account assigned to the printer, click the Mail tab, and ensure 'Manage email apps' has 'Authenticated SMTP' checked.
Open a web browser, type the IP address of your Lexmark MX710, and log in with your administrator credentials.
Navigate to Settings > E-mail > E-mail Setup. In the Primary SMTP Gateway field, enter 'smtp.office365.com'. Set the Primary SMTP Gateway Port to '587'.
Check the box for 'Use SSL/TLS' and set it to Required. Under SMTP Server Authentication, enter the full Microsoft 365 email address as the username. If MFA is enabled on the account, enter a generated App Password instead of the regular account password.
Save the settings and use the printer's control panel to scan a test document and email it to yourself to verify the connection.
Use Microsoft 365 Direct Send
Choose this method if your printer only needs to send scanned documents to recipients within your own Microsoft 365 organization.
Set Up Microsoft 365 SMTP Relay
Ideal for environments that need to send to external recipients but cannot support SMTP Authentication or TLS 1.2 on the printer.
Switch to WPS Office for a Seamless Document Experience
While troubleshooting complex Microsoft 365 SMTP and hardware integration issues, you might be looking for a simpler office suite. WPS Office is a free, lightweight, and highly compatible alternative to Microsoft Office, designed to make document creation, scanning, and sharing effortless.
- 1. Download WPS Office: Visit the official WPS website and click the free download button for your operating system.
- 2. Install the Software: Run the downloaded installer and follow the simple on-screen instructions to complete the setup in minutes.
- 3. Open and Manage Scans: Launch WPS Office to instantly open, edit, or convert the PDF documents you scan from your Lexmark printer.
Frequently Asked Questions
Why did Scan to Email suddenly stop working on my Lexmark printer?
Microsoft recently disabled Basic Authentication for Exchange Online to improve security. If your Lexmark printer was configured to use standard username and password authentication without modern security measures (like OAuth or App Passwords), the connection is now blocked by Microsoft 365.
What is the correct SMTP server address for Microsoft 365?
If you are using SMTP AUTH Client Submission, the correct server address is smtp.office365.com. If you are using Direct Send or SMTP Relay, you must use your organization's specific MX endpoint (usually formatted as yourdomain-com.mail.protection.outlook.com).
Can I use an App Password for the printer's SMTP settings?
Yes. If the Microsoft 365 account used by the printer has Multi-Factor Authentication (MFA) or Security Defaults enabled, you cannot use the normal account password. You must generate an App Password in the Microsoft account's security settings and enter that into the Lexmark printer's password field.
Does my Lexmark MX710 need a firmware update for Microsoft 365?
It might. Microsoft 365 requires TLS 1.2 for secure connections. If your Lexmark MX710 is running outdated firmware that only supports TLS 1.0 or 1.1, SMTP AUTH will fail. Check the Lexmark support website to download and apply the latest firmware for your printer model.
