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 Thank to: https://www.alitajran.com/ Exchange Server certificate changes To prevent misuse of UNC paths by attackers, Microsoft removed the parameters that take UNC paths as inputs from the Exchange Server PowerShell cmdlets and the Exchange Admin Center. These changes will affect all cumulative update (CU) releases of Microsoft Exchange Server 2019 (CU12 and later) and Microsoft Exchange Server 2016 (CU23 and later). Table of contents UNC path inputs not usable Exchange Admin Center certificate changes Exchange Server PowerShell cmdlets certificate changes Conclusion UNC path inputs not usable To prevent misuse of UNC paths by attackers, parameters that take UNC paths as inputs will no longer be usable in: Exchange Admin Center Exchange Server PowerShell cmdlets These certificate changes are available in the latest Exchange Server updates: Cumulative Update 12 for Exchange Server 2019 Cumulative Update 23 for Exchange Server 2016 Exchange Admin Center certificate changes The...

 El error -515 (JET_errInvalidLogSequence) que estás viendo indica que hay un problema con la secuencia de registros de log en la base de datos de Exchange. Este tipo de error generalmente ocurre cuando los archivos de log de la base de datos están corruptos o no se encuentran en la secuencia esperada. A continuación, se presentan pasos detallados para solucionar este problema: Pasos para solucionar el error -515 1. Verificar la integridad de la base de datos Utiliza el comando eseutil para verificar el estado de la base de datos. Esto te permitirá saber si la base de datos está corrupta o si hay algún problema. eseutil /mh "D:\Mailbox\SIUMDB02\SIUMDB02.edb" Reemplaza la ruta con la ruta correcta de tu archivo .edb. Busca el campo State ; debe ser Clean Shutdown . Si ves Dirty Shutdown , la base de datos tiene problemas. 2. Verificar los archivos de registro Asegúrate de que todos los archivos de registro correspondientes a la base de datos estén presentes en la carpeta de ...

 Thank to: https://www.alitajran.com/ How to renew a certificate in Exchange Hybrid? You have a new third-party certificate installed on the Exchange Server. Now that you finished that task, you like to remove the old certificate. But you get a message that these certificates are tagged with the Outbound to Office 365 send connector. Why is this happening, and what is the solution? Table of contents Invalid Exchange certificate Install Exchange certificate These certificates are tagged with following Send Connectors Renew certificate in Exchange Hybrid with PowerShell Step 1. Collect information Step 2. Set the new certificate Step 3. Restart IIS Renew certificate in Exchange Hybrid with Office 365 Hybrid Configuration Wizard Conclusion Invalid Exchange certificate Sign in to the Exchange Server. Navigate to  servers > certificates . Select the Exchange Server from the drop-down menu if you have multiple Exchange Servers. In our example, we have an invalid certificate....