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Exchange erreur auth Certificat inexistant MSExchange OAuth 2004
New-ExchangeCertificate -KeySize 2048 -PrivateKeyExportable $true -SubjectName “cn= Microsoft Exchange Server Auth Certificate” -DomainName “mail.synchrone-ingenierie.fr” -FriendlyName “Microsoft Exchange Server Auth Certificate” -Services SMTP
Set-AuthConfig -NewCertificateThumbprint E8E8EA40B5F53AA7423627BEA47D9F970AA6B175 –NewCertificateEffectiveDate $dt
Set-AuthConfig –PublishCertificate
Set-AuthConfig -ClearPreviousCertificate
IIS reset
Article : http://www.messaginginsight.com/2017/06/03/setting-or-renewing-a-new-exchange-auth-certificate/