Microsoft Tech Talks - Office 365 Deprecating Basic Authentication - What You Can Do Now


When: September 14, 2021 12:00 PM 2:00 PM - 3:00 (AEST)

Registration Link:


Basic authentication relies solely on username and password, it has proven insecure and is not recommended in modern IT environments and Microsoft is deprecating basic authentication


Join us for a Microsoft Tech Talk where we will be demonstrating you how you can prepare for this change and adopting modern authentication

2 Replies

@Edmond Soo 
Additional Resources links from the Tech Talk. Thank you.

Block legacy authentication - Azure Active Directory | Microsoft Docs

One simple action you can take to prevent 99.9 percent of attacks on your accounts (

Basic Authentication and Exchange Online – June 2021 Update - Microsoft Tech Community

Zero Trust Security Model and Framework | Microsoft Security

Authentication methods and features - Azure Active Directory | Microsoft Docs

Passwordless Multifactor Authentication | Microsoft Security

Windows Hello for Business Overview (Windows 10) - Microsoft 365 Security | Microsoft Docs

Azure Active Directory security defaults | Microsoft Docs

Conditional access with Azure AD - Microsoft Security

Conditional Access - Block legacy authentication - Azure Active Directory | Microsoft Docs

Troubleshoot Conditional Access using the What If tool - Azure Active Directory | Microsoft Docs

Enable or Disable POP3 or IMAP4 access for a user | Microsoft Docs

Set-CASMailbox (ExchangePowerShell) | Microsoft Docs

Get-CASMailbox (ExchangePowerShell) | Microsoft Docs

Get-CASMailboxPlan (ExchangePowerShell) | Microsoft Docs

Set-CASMailboxPlan (ExchangePowerShell) | Microsoft Docs

Enable or disable SMTP AUTH | Microsoft Docs

Set-TransportConfig (ExchangePowerShell) | Microsoft Docs

Disable Basic authentication in Exchange Online | Microsoft Docs

New-AuthenticationPolicy (ExchangePowerShell) | Microsoft Docs

Set-User (ExchangePowerShell) | Microsoft Docs

Authenticate an IMAP, POP or SMTP connection using OAuth | Microsoft Docs

Latest blog post: Basic Authentication and Exchange Online – September 2021 Update - Microsoft Tech Community

Today, we are announcing that, effective October 1, 2022, we will begin to permanently disable Basic Auth in all tenants, regardless of usage, with the exception of SMTP Auth.