Update procedure Exchange CU21 & Security update

Download Cumulative Update 21 for Exchange Server 2016 (KB5003611) : https://www.microsoft.com/en-us/download/details.aspx?id=103242 Download Security Update For Exchange Server 2016 CU21 (KB5004779) :https://www.microsoft.com/en-us/download/details.aspx?id=103311 Start by updating Active Directory using the latest CU installation …

Exchange check current version

Via Powershell Via Exchange Management Shell The AdminDisplayVersion value shows the Exchange version in the format : “MajorVersion.ServicePack.CumulativeUpdate/UpdateRollup.MinorVersion” Via webbrowser (if maps is enabled) : https://<serverFQDN>/mapi/emsmdb/ For Office 365 use https://outlook.office.com/mapi/emsmdb/ Now …

Exchange 2016 OWA / ECP issue : ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length

[Owa] An internal server error occurred. The unhandled exception was: Microsoft.Exchange.Diagnostics.ExAssertException: ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length<1 at Microsoft.Exchange.Diagnostics.ExAssert.AssertInternal(String formatString, Object[] parameters) at Microsoft.Exchange.Clients.Common.HmacProvider.GetCertificates() at Microsoft.Exchange.Clients.Common.HmacProvider.GetHmacProvider() at Microsoft.Exchange.Clients.Common.HmacProvider.ComputeHmac(Byte[][] messageArrays) at Microsoft.Exchange.HttpProxy.FbaModule.SetCadataCookies(HttpApplication httpApplication) at Microsoft.Exchange.HttpProxy.FbaFormPostProxyRequestHandler.HandleFbaFormPost(BackEndServer …

Exchange Online create dynamic distribution groups

Start a Powershell session with Exchange online $UserCredential = Get-Credential$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection Import-PSSession $Session -DisableNameChecking #Create Dynamic distribution groupNew-DynamicDistributionGroup -Name Test-Dynamic …

Exchange Online PowerShell V2

The Exchange Online PowerShell V2 module also known as EXO V2 enables admins to connect to the Exchange Online environment to retrieve data, create new objects, update existing objects, remove …