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This blog is about mostly anything in IT. But the primary focuses are Microsoft Technologies like Exchange, Office 365, Azure and Cloud Security.
Thomas Stensitzki | MVP
Thomas Stensitzki | MVP

MVP LogoThomas Stensitzki is a principal technology consultant focusing on the Microsoft messaging and collaboration technologies and the owner of Granikos GmbH & Co. KG.

He is an MVP for Office Apps & Services since 2018.

Thomas is an MCT Regional Lead for Germany and delivers Microsoft Learn training courses for Office 365, Microsoft Teams, and Exchange Server.

He holds Master certifications as Microsoft Certified Solutions Master Messaging and as Microsoft Certified Master for Exchange Server 2010. These certifications make him a subject matter expert for any messaging topic related to Microsoft Exchange, Exchange Online, Microsoft 365, and hybrid configurations.

Follow Thomas: LinkedIn, Twitter

My sessions: https://sessionize.com/thomas-stensitzki

MVP Blog: https://blogs.msmvps.com/thomastechtalk
Personal blog: http://justcantgetenough.granikos.eu
Personal blog (legacy): http://www.sf-tools.net
Personal website: http://www.stensitzki.de
Contact Thomas at thomas@mcsmemail.de

 

Microsoft TechNet provides detailed documentation on Exchange Server 2016 mail flow and the transport pipeline. That article helps you to

The detailed diagram showing the Exchange Server 2016 transport pipeline in the TechNet documentation does not show the TCP ports being used by the Exchange Server 2016 components.

The following diagram is an updated version of the original diagram showing the TCP ports being used by

  • Front End Transport service
  • Transport service
  • Mailbox Transport service
  • Mailbox Transport Delivery service

Exchange Server 2016 Mail Flow with Ports

By default Exchange Server 2016 implements the following receive connectors

  • Front End Transport service
    • Default Frontend SERVER, TCP 25
    • Outbound Proxy Frontend SERVER, TCP 717
    • Client Frontend SERVER, TCP 587
  • Transport service
    • Default SERVER, TCP 2525
      Server SMTP connections connected to TCP 25 are proxied to this connector
    • Client Proxy SERVER, TCP 465
      Client submission connections connected to TCP 587 are proxied to this connector
  • Mailbox Transport service
    • SERVER\Default Mailbox Delivery SERVER, TCP 475 (hidden)

Cross server SMTP communication occurs on either TCP 2525 or TCP 475.

Enjoy Exchange Server!

Link

 

 

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Problem

It might happen that a mobile device running an Android operating system is not being redirected properly by the on-premises AutoDiscover service, when the mailbox has been migrated to Office 365.

If your device is not redirected, the device prefix is not recognized by Exchange Server and therefore not being redirected properly. The new device redirect feature for Android devices was introduced in Exchange Server 2010 SP3 RU9, Exchange Server 2013 CU8, and Exchange Server 2016.

The following device prefixes are known to Exchange by default:

  • Acer, ADR9, Ally, Amazon, Android, ASUS, EasClient, FUJITSU, HTC, HUAWEI, LG, LS, Moto, Mozilla, NEC, Nokia, Palm, PANASONIC, PANTECH, Remoba, Samsung, SEMC, SHARP, SONY-, TOSHIBA, Vortex, VS, ZTE

Solution

If the device prefix of your device is not part of the default list, you can add the prefix to the AutoDiscover web.config file. 

Add the device prefix to the MobileSyncRedirectBypassClientPrefixes key in the appSettings node.

  <appSettings>
    <add key="LiveIdBasicAuthModule.AllowLiveIDOnlyAuth" value="true" />
    <add key="LiveIdBasicAuthModule.ApplicationName" value="Microsoft.Exchange.Autodiscover" />
    <add key="LiveIdBasicAuthModule.RecoverableErrorStatus" value="456" />
    <add key="LiveIdBasicAuthModule.PasswordExpiredErrorStatus" value="457" />
    <add key="ActiveManagerCacheExpirationIntervalSecs" value="5" />
    <add key="ProxyRequestTimeOutInMilliSeconds" value="30000" />
    <add key="LiveIdNegotiateAuxiliaryModule.AllowLiveIDOnlyAuth" value="true" />
    <add key="TrustedClientsForInstanceBasedPerfCounters" value="bes" />
    <add key="InstanceBasedPerfCounterTimeWindowInterval" value="900000" />
    <add key="MobileSyncRedirectBypassEnabled" value="true" />
    <add key="MobileSyncRedirectBypassClientPrefixes" value="Acer,ADR9,Ally,Amazon,Android,ASUS,EasClient,FUJITSU,HTC,HUAWEI,LG,LS,Moto,Mozilla,NEC,Nokia,Palm,PANASONIC,PANTECH,Remoba,Samsung,SEMC,SHARP,SONY-,TOSHIBA,Vortex,VS,ZTE" />
  </appSettings>

File location

%ExchangeInstallPath%\ClientAccess\Autodiscover\web.config

Notes

  • Modify the web.config on each Exchange 2010/2013 Client Access Server and each Exchange 2016 server.
  • After installing an Exchange 2013/2016 CU, the web.config must be modified again.

As always: Be careful when modifying application settings. Test such changes in a test environment first, if possible.

Links

 


You need assistance with your Exchange Server setup? You have questions about your Exchange Server infrastructure and going hybrid? You are interested in what Exchange Server 2016 has to offer for your environment?

Contact me at thomas@mcsmemail.de
Follow at https://twitter.com/stensitzki

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Problem

I came across an interesting issue when setting up a new Exchange 2013 server in an Exchange organization having the cmdlet extension agent enabled.

As mentioned in my last post Exchange setup checks for the existence of the ScriptingAgentConfig.xml file when agent extenstion is enabled in the Exchange organization. It turned out that this ist not only true when you install an Exchange update using /mode:update, but as well when installing a new Exchange server using /mode:install.

The following error occurs when Exchange Management Tools are provisioned.

Configuring Microsoft Exchange Server

    Preparing Setup                                                               COMPLETED
    Stopping Services                                                             COMPLETED
    Copying Exchange Files                                                        COMPLETED
    Language Files                                                                COMPLETED
    Restoring Services                                                            COMPLETED
    Language Configuration                                                        COMPLETED
    Exchange Management Tools                                                     FAILED
     The following error was generated when "$error.Clear();
          Set-WERRegistryMarkers;
        " was run: "Microsoft.Exchange.Provisioning.ProvisioningBrokerException: Provisioning layer
initialization failed: '"Scripting Agent initialization failed: "File is not found: 'C:\Program File
s\Microsoft\Exchange Server\V15\Bin\CmdletExtensionAgents\ScriptingAgentConfig.xml'.""' ---> Microso
ft.Exchange.Provisioning.ProvisioningException: "Scripting Agent initialization failed: "File is not
 found: 'C:\Program Files\Microsoft\Exchange Server\V15\Bin\CmdletExtensionAgents\ScriptingAgentConf
ig.xml'."" ---> System.IO.FileNotFoundException: "File is not found: 'C:\Program Files\Microsoft\Exc
hange Server\V15\Bin\CmdletExtensionAgents\ScriptingAgentConfig.xml'."
   at Microsoft.Exchange.ProvisioningAgent.ScriptingAgentConfiguration.Initialize(String xmlConfigPa
th)
   at Microsoft.Exchange.ProvisioningAgent.ScriptingAgentConfiguration..ctor(String xmlConfigPath)
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.ProvisioningAgent.ScriptingAgentConfiguration..ctor(String xmlConfigPath)
   at Microsoft.Exchange.ProvisioningAgent.ScriptingAgentClassFactory.get_Configuration()
   at Microsoft.Exchange.ProvisioningAgent.ScriptingAgentClassFactory.GetSupportedCmdlets()
   at Microsoft.Exchange.Provisioning.ProvisioningBroker.BuildHandlerLookupTable(CmdletExtensionAgen
t[] enabledAgents, Exception& ex)
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.Provisioning.ProvisioningLayer.GetProvisioningHandlersImpl(Task task)
   at Microsoft.Exchange.Provisioning.ProvisioningLayer.GetProvisioningHandlers(Task task)
   at Microsoft.Exchange.Configuration.Tasks.Task.<BeginProcessing>b__4()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeNonRetryableFunc(Action func, Boolean termin
atePipelineIfFailed)".

As expected a fresh Exchange install contains the sample file only. The following screenshot shows the Exchange Management Shell and the releated folder in the background.

Enabled cmdlet extension agent breaks Exchange setup

 

Solution

The only solution currently known to me is to disable the cmdlet extension agent until the setup of the new Exchange server has finished.

Disable-CmdletExtensionAgent "Scripting Agent"

Having the cmdlet extension agent disabled the setup finishes without any issues. Don't forget to copy the cmdlet extension Xml file to the newly built server and to enable the cmdlet extension agent again.

Enable-CmdletExtensionAgent "Scripting Agent"

 

Links

 


You need assistance with your Exchange Server setup? You have questions about your Exchange Server infrastructure and going hybrid? You are interested in what Exchange Server 2016 has to offer for your environment?

Contact me at thomas@mcsmemail.de
Follow at https://twitter.com/stensitzki

 

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When you've enabled the Exchange scripting agent extension agents, it is required to copy the configuration file to each Exchange server. Paul Cunningham's script helps you to achive this goal pretty easily.

But if you have installed the Exchange 2013 Management Tools on additonal servers, these servers are not fetched using the Get-ExchangeServer cmdlet. But when you install a Cumulative Update the existence of the extension agent config file is checked. And this even on a server having only the Exchange Management Tools installed.

Therefore the following PowerShell code provides an easy and simple way to add additonal server having the Exchange 2013+ Management Tools installed (aka Admin Servers, Monitoring Servers, Job Servers, etc.). The script uses a filter to select Exchange 2013 servers only, as the script has been extended in an environment having still active Exchange 2007 servers.

The following PowerShell snippet displays only the changes, which need to be added to Paul's original script starting row 68.

# Original PowerShell code
# $exchangeservers = Get-ExchangeServer

# Select all Exchange 2013 servers only, restrict properties to Name and AdminDisplayName
$exchangeservers = Get-ExchangeServer | ?{$_.AdminDisplayVersion -like "Version 15.0*"} | Select Name, AdminDisplayVersion

# Add additional servers as needed

$manualServers = @()
# Copy and modify as needed
$manualServers += (New-Object PSObject -Property @{Name="EXSRV2010";AdminDisplayVersion="Version 14"})
$manualServers += (New-Object PSObject -Property @{Name="EXSRV2013-01";AdminDisplayVersion="Version 15"})
$manualServers += (New-Object PSObject -Property @{Name="EXSRV2013-02";AdminDisplayVersion="Version 15"})

# Combine arrays
$exchangeservers = $exchangeservers + $manualServers

# End Modification

$report = @()

[string]$date = Get-Date -F yyyyMMdd-HHmmss

Enjoy extending the Exchange PowerShell cmdlets.

Links

Questions? Just leave a comment.

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Last updated: 2016-12-20

Exchange Server 2013Exchange Server 2016Description

This scripts creates a new shared mailbox (aka team mailbox) and security groups for full access and and send-as delegation. The security groups are created using a naming convention. If required by your Active Directory team, you can add group prefixes or department abbreviations as well.

The script uses a Xml configuration file to simplify changes for variables unique for your environment.

High level steps executes by the script:

  1. Create a new shared mailbox
  2. Create a new mail enabled security group for full access delegation
  3. Assign full access security group for full access to the shared mailbox
  4. Create a new mail enabled security group for send-as delegation
  5. Assign send-as permissions to send-as security group

 

Examples

Xml settings file

<?xml version="1.0"?>
<Settings>
	<GroupSettings>
		<Prefix>pre_</Prefix>
		<SendAsSuffix>_SA</SendAsSuffix>
		<FullAccessSuffix>_FA</FullAccessSuffix>
		<CalendarBookingSuffix>_CB</CalendarBookingSuffix>
		<TargetOU>mcsmemail.de/IT/Groups/Mail</TargetOU>
		<Domain>mcsmemail.de</Domain>
		<Seperator>-</Seperator>
	</GroupSettings>
	<AccountSettings>
		<TargetOU>mcsmemail.de/IT/SharedMailboxes</TargetOU>
	</AccountSettings>
	<GeneralSettings>
		<Sleep>10</Sleep>
	</GeneralSettings>
</Settings>

The following example creates an empty shared mailbox for an internal Exchange Admin team with empty security groups.

.\New-TeamMailbox.ps1 -TeamMailboxName "TM-Exchange Admins" ` 
  -TeamMailboxDisplayName "Exchange Admins" `
  -TeamMailboxAlias "TM-ExchangeAdmins" `
  -TeamMailboxSmtpAddress "ExchangeAdmins@mcsmemail.de" `
  -DepartmentPrefix "IT"

The following Create-TeamMailbox.ps1 script simplifies the process of creating a team mailbox even more.

$teamMailboxName = 'TM-Exchange Admin'
$teamMailboxDisplayName = 'Exchange Admins'
$teamMailboxAlias = 'TM-ExchangeAdmin'
$teamMailboxSmtpAddress = 'ExchangeAdmins@mcsmemails.de'
$departmentPrefix = 'IT'
$groupFullAccessMembers = @('exAdmin1','exAdmin2')
$groupSendAsMember = @('exAdmin1','exAdmin2')

.\New-TeamMailbox.ps1 -TeamMailboxName $teamMailboxName ` 
  -TeamMailboxDisplayName $teamMailboxDisplayName `
  -TeamMailboxAlias $teamMailboxAlias `
  -TeamMailboxSmtpAddress $teamMailboxSmtpAddress `
  -DepartmentPrefix $departmentPrefix `
  -GroupFullAccessMembers $groupFullAccessMembers `
  -GroupSendAsMember $groupSendAsMember -Verbose

Version History

  • 1.0, Initial community release
  • 1.1, Prefix seperator added, PowerShell hygiene

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