Scan-to-Email Security: Why Businesses Are Suddenly Having Problems
Why Scan-to-Email Security Matters
For many businesses, scan-to-email is one of the most heavily used features on office copiers and multifunction printers (MFPs).
Employees rely on it every day to:
- Send invoices
- Share contracts
- Scan HR documents
- Route paperwork
- Digitize records
- Deliver sensitive information quickly
But recent Microsoft 365 and Google security changes have exposed a major problem:
many scan-to-email systems were built using older authentication methods that are no longer considered secure.
As organizations strengthen cybersecurity protections, businesses are increasingly experiencing:
- Scan-to-email failures
- SMTP authentication errors
- Login problems
- Blocked email transmissions
- Security warnings
- Multifactor authentication conflicts
At Doing Better Business, we help organizations modernize and secure scan-to-email workflows while reducing cybersecurity risks across their print environment.
What Is Scan-to-Email?
Scan-to-email allows a copier or multifunction printer to:
- Scan a document
- Convert it into a digital file
- Send it through an email server
- Deliver it to one or more recipients
Most systems use SMTP (Simple Mail Transfer Protocol) to send messages through:
- Microsoft 365
- Google Workspace
- Exchange servers
- Hosted email providers
Because these devices connect directly to business email systems, proper security configuration is critical.
Why Scan-to-Email Suddenly Stops Working
Many organizations recently discovered their copiers could no longer send email after:
- Microsoft 365 security updates
- Google authentication changes
- Multifactor authentication requirements
- Legacy authentication shutdowns
- SMTP relay policy changes
Older copier configurations often relied on:
- Basic authentication
- Legacy SMTP methods
- Stored usernames and passwords
- Outdated encryption standards
These methods are increasingly blocked because they create cybersecurity vulnerabilities.
Common Scan-to-Email Security Risks
1. Legacy Authentication
Older scan-to-email setups may use basic authentication methods that transmit credentials less securely.
Cybercriminals frequently target these legacy protocols because they are easier to exploit.
2. Stored Credentials
Many printers store:
- Email usernames
- SMTP passwords
- Authentication settings
If improperly secured, these credentials could potentially be exposed.
3. Weak Encryption
Some older devices use outdated TLS or SSL encryption standards that may no longer meet modern security requirements.
4. Open SMTP Relays
Improperly configured SMTP relay settings can sometimes allow unauthorized email usage or abuse.
5. Multifactor Authentication Conflicts
Modern MFA security policies may block older devices that cannot complete advanced authentication workflows.
6. Firmware Vulnerabilities
Outdated printer firmware may expose security weaknesses affecting:
- Email communication
- Authentication
- Device access
- Network security
Signs Your Scan-to-Email Environment May Be Vulnerable
Businesses should investigate if they:
- Still use basic SMTP authentication
- Have older unsupported printers
- Experience intermittent scan failures
- Have not updated printer firmware recently
- Use shared email credentials
- Have unknown scan configurations
- Recently migrated to Microsoft 365
- Recently enabled MFA policies
Why Microsoft 365 Security Changes Matter
Microsoft has aggressively moved businesses toward:
- Modern authentication
- OAuth-based security
- Multifactor authentication
- Stronger encryption standards
- Conditional access policies
As part of this transition, Microsoft has reduced support for many legacy authentication methods commonly used by older copiers and printers.
This is one reason many organizations suddenly experience:
- SMTP errors
- Authentication failures
- “Cannot connect to server” messages
- Intermittent email delivery issues
How Hackers Can Exploit Weak Scan-to-Email Configurations
Improperly secured scan workflows may expose:
- Email credentials
- Internal email systems
- Directory information
- Sensitive documents
- Network access points
Attackers may attempt to:
- Capture credentials
- Abuse SMTP relays
- Gain access to internal systems
- Send phishing emails
- Exploit outdated protocols
Because printers are often overlooked during cybersecurity reviews, vulnerabilities may go unnoticed for years.
How Businesses Can Improve Scan-to-Email Security
Use Modern Authentication Methods
Businesses should transition away from insecure legacy authentication whenever possible.
Review SMTP Configuration
Organizations should validate:
- Encryption settings
- Port configuration
- Authentication methods
- Relay permissions
- Security policies
Update Printer Firmware
Firmware updates may address:
- Authentication compatibility
- Security vulnerabilities
- TLS requirements
- Microsoft 365 compatibility
Secure Stored Credentials
Limit:
- Shared accounts
- Excessive permissions
- Exposed passwords
Use dedicated service accounts when appropriate.
Restrict Scan Destinations
Organizations should control:
- Allowed email domains
- Address books
- User permissions
- Scan destinations
Monitor Print & Scan Devices
Managed Print Services can help monitor:
- Device health
- Firmware status
- Security settings
- Scan functionality
- Authentication issues
The Role of Managed Print Services (MPS)
Secure Managed Print Services helps businesses:
- Reduce vulnerabilities
- Standardize configurations
- Modernize scan workflows
- Improve reliability
- Maintain firmware updates
- Support Microsoft 365 transitions
Instead of waiting for scan failures, businesses can proactively manage print and scanning security.
Industries with Higher Scan Security Requirements
Healthcare
Healthcare organizations often scan:
- Patient records
- Insurance forms
- Medical documentation
Security and HIPAA compliance are critical.
Legal
Law firms frequently process confidential legal materials and contracts.
Financial Services
Financial organizations handle:
- Tax documents
- Banking records
- Client information
Education
Schools and universities manage:
- Student records
- HR files
- Financial documentation
Why Local Expertise Matters
Scan-to-email issues are not always simple printer problems.
They often involve:
- Microsoft 365 configuration
- Network security
- SMTP policies
- Authentication standards
- Firewall settings
- DNS and routing
- User permissions
At Doing Better Business, our team helps businesses troubleshoot and modernize scan-to-email environments across:
- Pennsylvania
- Ohio
- Maryland
- West Virginia
- Virginia
We support organizations with:
- Managed Print Services
- Secure scanning
- Microsoft 365 integration
- Workflow automation
- Print fleet management
- Business technology consulting
Frequently Asked Questions About Scan-to-Email Security
Why did scan-to-email suddenly stop working?
Many businesses are affected by Microsoft 365 and Google security changes that block older authentication methods.
Is scan-to-email a cybersecurity risk?
Improperly configured systems may expose credentials or rely on outdated authentication protocols.
Can older copiers still work with Microsoft 365?
In many cases yes — but they may require updated configuration, firmware, or alternative authentication methods.
Does multifactor authentication affect copiers?
Yes. Older devices often cannot complete modern MFA workflows without additional configuration changes.
Should printer firmware be updated regularly?
Yes. Firmware updates often include important security and compatibility improvements.
Can Managed Print Services help with scan-to-email problems?
Yes. Managed Print providers can help standardize, secure, and troubleshoot scan environments.
Secure Your Scan-to-Email Environment
As cybersecurity standards evolve, businesses can no longer treat printers and scanners as isolated office devices.
Modern scan workflows require:
- Secure authentication
- Proper encryption
- Ongoing monitoring
- Updated firmware
- Secure configuration management
Organizations that modernize their scan-to-email environment can improve:
- Reliability
- Security
- Compliance
- Workflow efficiency
- Business continuity
A proactive Managed Print Services strategy helps businesses reduce vulnerabilities while keeping critical document workflows running smoothly.
Contact our Experts today to help guide you to safety!