oauth xoauth2

  1. Exchange Online SMTP AUTH Basic Authentication: 2026 Default Disable and 2027 Removal Timeline

    Microsoft has pushed more runway to organizations still using legacy SMTP AUTH with Basic Authentication in Exchange Online, replacing an earlier hard deadline with a clearer, staged timeline that gives admins more time to inventory, remediate, and migrate—but it also tightens defaults going...
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    • exchange online final removal timeline oauth xoauth2 smtp authentication
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    • Forum: Windows News