Exchange Q&A: Mail Flow (11)

1.How can we view and configure the update, timeout, and download settings for the Malware agent on the Mailbox server?

Use the Get-MalwareFilteringServer and Set-MalwareFilteringServer cmdlets in the Exchange Management Shell.

2.What are the Exchange Management Shell scripts that we can use to manage malware filtering?

  • Disable-Antimalwarescanning.ps1: disables the Malware agent, and malware engine and definition updates on the Mailbox server;
  • Enable-Antimalwarescanning.ps1: enables the Malware agent, enables malware engine and definition updates, and runs engine and definition updates on the Mailbox server;
  • Update-MalwareFilteringServer.ps1: manually runs malware engine and definition updates on the Mailbox server.

3.What are the antimalware options for Exchange?

  • Built-in antimalware protection;
  • Exchange Online Protection (EOP);
  • Third-party antimalware protection.

4.How to create and export an Edge Subscription file?

Running the New-EdgeSubscription cmdlet on Edge Transport Server:

New-EdgeSubscription -FileName “C:\Data\EdgeSubscriptionInfo.xml”

5.How to import the Edge Subscription file to the Active Directory site?

Running the New-EdgeSubscription cmdlet on the Mailbox server:

New-EdgeSubscription -FileData ([byte[]]$(Get-Content -Path “C:\Data\EdgeSubscriptionInfo.xml” -Encoding Byte -ReadCount 0)) -Site “Default-First-Site-Name”

6.What we need to prepare for EdgeSync?

  • License the Edge Transport server;
  • Verify that the required ports are open in the firewall;
  • Verify that DNS host name resolution is successful from the Edge Transport server to the Mailbox servers and from the Mailbox servers to the Edge Transport server;
  • Configure the following transport settings for propagation to the Edge Transport server:
  • Internal SMTP servers;
  • Accepted domains;
  • Remote domains.

7.How to override the EdgeSync synchronization schedule and immediately start synchronization?

Use the Start-EdgeSynchronization cmdlet.

8.What data the EdgeSync service replicates from Active Directory to AD LDS?

  • Send connector configuration;
  • Accepted domains;
  • Remote domains;
  • Safe Senders Lists;
  • Blocked Senders Lists;
  • Recipients;
  • List of send and receive domains used in domain secure communications with partners;
  • List of SMTP servers listed as internal in your organization’s transport configuration;
  • List of Mailbox servers in the subscribed Active Directory site.

9.How to change the maximum interval between EdgeSync synchronizations?

Use the Set-EdgeSyncServiceConfig cmdlet.

Available paraneters:




10.What are the order of precedence of address rewrite entries from highest priority to lowest priority:

  • Individual email addresses;
  • Domain or subdomain mapping;
  • Domain flattening.

Still have questions? Click here to view Microsoft’s official documentation on Exchange.


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