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Microsoft and Google plan to turn off an old sign-in method called Basic Authentication by April 2026. This update could affect how your business systems send emails.
If your phones, fax machines, or other systems send messages through email—like voicemails sent to your inbox, faxes that arrive as email attachments, or system alerts or reports—those features may stop working once this change takes effect.
To keep everything running smoothly, your systems may need an update. Check out the rest of this page to learn what’s changing and how to prepare.
Starting March 2026, Microsoft and Google will discontinue support for Basic Authentication, the legacy username-and-password method used by many email servers. Full deactivation can be expected by April 30, 2026. This update impacts systems that connect to Outlook, Exchange, or Gmail, including voicemail, printer, and alerting integrations.
Without an update, those systems may no longer reliably deliver messages.
If your phone system sends voicemails to your inbox, this change could interrupt delivery. Gibson Teldata can reconfigure your system to use secure, supported authentication.
Printers, copiers, and other applications that use SMTP may fail to send messages after the update. We’ll help you implement modern, secure connections.
Modern authentication protects your network, aligns with Microsoft and Google standards, and ensures continuous, secure communication.
Word is spreading about upcoming changes. Review your phone and email integrations for any use of legacy authentication
Microsoft begins the deactivation process for Basic Authentication.
Basic Authentication is fully retired. Legacy systems must be updated to maintain service.
All new devices and apps will require modern, secure authentication methods.
Our Technology Sales Consultants specialize in keeping your business communication systems secure, connected, and compliant; here’s how.
We’ll audit your current voicemail, fax, and alerting systems for compatibility.
Our experts reconfigure SMTP settings and ensure secure communication between systems.
We help you integrate voice, video, and messaging for stronger business continuity.
You’ll always talk to real people who understand your systems and respond fast.
Here’s what our customers are asking about the upcoming Microsoft and Google authentication changes.
It may if it uses Basic Authentication. We’ll help update your system, so voicemail continues delivering seamlessly.
Yes, any device that sends email through your server could be impacted. We’ll verify and reconfigure them for you.
Now is the time to review and update. Early preparation avoids service disruptions in 2026.
Not necessarily. Most systems can be updated without replacement.
Gibson Teldata can help your business transition smoothly to modern, secure authentication, keeping voicemail-to-email, faxing, and alerts running without interruption. Stay connected, secure, and ahead of the curve.
