Fix Konica Minolta Scan to Email Server Connection Error with Office 365
Question details
Users are experiencing intermittent server connection errors when attempting to use the scan-to-email feature on Konica Minolta multifunction printers via Office 365 SMTP.
- Product
- Microsoft 365 / Konica Minolta
- Device & OS
- not provided
- Scenario
- Setting up or using the Scan to Email feature on Konica Minolta printers using smtp.office365.com, STARTTLS, and port 587.
- Observed behavior
- The printer reports a server connection error despite network connectivity and open ports (verified via Telnet) being confirmed.
Ensure you have administrator access to the Konica Minolta printer's PageScope Web Connection interface and the Microsoft 365 Exchange Admin Center.
Verify SMTP Settings and Enable Authenticated SMTP in Microsoft 365
Double-check the core SMTP configuration on the printer and ensure SMTP AUTH is explicitly enabled for the sending account in Microsoft 365.
Even if the port is open, Microsoft 365 will reject the connection if Authenticated SMTP is disabled for the specific user account or globally across the tenant.
Log in to the Konica Minolta web interface (Administrator mode). Navigate to Network > E-mail Setting > E-mail TX (SMTP).
Verify that the SMTP Server Address is set to smtp.office365.com. Ensure the Port Number is 587 and that STARTTLS (or SSL/TLS) is enabled.
Log in to the Microsoft 365 Admin Center. Go to Users > Active users, select the user account configured on the printer, click on the Mail tab, and select Manage email apps. Ensure that 'Authenticated SMTP' is checked and save changes.
Configure Microsoft 365 Direct Send as an Alternative
If SMTP AUTH remains blocked by security policies, use the Direct Send method to allow the printer to send emails without requiring user authentication.
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Frequently Asked Questions
Why does port 587 show as open via Telnet but the printer still fails?
Telnet only confirms basic network connectivity to the port. The printer might still fail during the TLS handshake, or Microsoft 365 might reject the connection due to disabled SMTP AUTH, incorrect credentials, or Conditional Access policies blocking the login attempt.
Can Conditional Access policies block Konica Minolta scan to email?
Yes. If your Microsoft 365 tenant uses Conditional Access policies or Security Defaults that block legacy authentication, the SMTP AUTH connection from the printer will fail. You may need to create an exception or switch to Direct Send.
What is the difference between SMTP AUTH and Direct Send?
SMTP AUTH uses a specific user's credentials to securely send mail to recipients both inside and outside your organization. Direct Send uses your Microsoft 365 MX record without credentials, but it restricts sending to internal organizational email addresses only.
