What is Backscatter messages in Exchange Online Protection? It’s the automated bounce messages which is sent by mail servers usually due to incoming spam. Because Exchange Online Protection is a spam filtering service , messages sent to suspicious and non-existing recipients are rejected. When this process happens Exchange Online Protection generates a NDR (…
There is no existing permission entry found for user: running Set-MailboxFolderPermissions You receive the following error when trying to run the Set-MailboxFolderPermissions in Exchange 2016 EMS. There is no existing permission entry found for user: Su-Yu-Chan Rack – Nerd. + CategoryInfo : NotSpecified: (:) [Set-MailboxFolderPermission], UserNotFoundInPermissionEntryException + FullyQualifiedErrorId : [Server=THATLAZYEX-02,RequestId=365c6506-0b10-4de7-bd31-eeeec601ac4a,TimeStamp=7/26/2017 5:08:42 AM] [FailureCategory=Cmdlet-UserNotFoundInPermissionEntryException]…
Reduce Exchange 2016 Mailbox Database size using Eseutil. In this post I will walk through the steps of reducing the Exchange Mailbox Database size, However the method of reducing the Mailbox Database size varies from different administrators. If you can afford to have downtime on a Mailbox Database then these steps would work for…
“Fail” LED=550 5.7.136 RESOLVER.RST.SenderNotAuthenticatedForRecipient; authentication required; Delivery restriction check failed because the sender was not authenticated when sending to this recipient. In this post i will go over the option of removing the setting “Require that all senders are authenticated“. In Exchange 2013 this can be removed by logging into the Admin Console > Recipients…
Assign Office 365 Licenses with Active Directory Groups In this post I will walk through the options of assigning Office 365 Licenses based on Active Directory Group membership. Microsoft has recently released the new feature in Azure Active Directory which allows you to apply Azure licenses as well as Office 365 licenses based on group…
New Mailbox Database using PowerShell In this post I will create a new Mailbox Database for Exchange 2016 using PowerShell. Available Syntax for the cmdlet “New-MailboxDatabase” New-MailboxDatabase -Name -Server [-AutoDagExcludeFromMonitoring <$true | $false>] [-IsExcludedFromInitialProvisioning ] [-IsExcludedFromProvisioning <$true | $false>] [-IsSuspendedFromProvisioning <$true | $false>] [-OfflineAddressBook ] [-PublicFolderDatabase ] [-Confirm []] [-DomainController ] [-EdbFilePath ] [-LogFolderPath ]…
Recover Deleted Items using VEEAM for Microsoft Office 365 In todays post I will go through the options of recover a deleted item using VEEAM Backup for Microsoft Office 365. To get started we need to open the VEEAM Backup Console and then Click on the Explore Option. Select from which restore point you want…
Set Exchange resource mailbox to send auto decline for double booking. This is a topic that always seems to come up from the helpdesk team , in this post i will configure a resource mailbox to auto decline when there is a double booking. In this post i will use the Exchange Powershell to configure…
Slow SMTP Relay for Applications using Exchange 2010 Receive Connectors. In this post we will look at the default “SMTP Delay” for messages received from a system that don’t support shadow redundancy. By default, Receive connectors delay acknowledgement up to 30 seconds. For more information, see “Delayed Acknowledgement” in Understanding Shadow Redundancy. To view the…
Where to find Email headers in Outlook for Mac ? This post is to serve as a guide on where to find the “Email Header” options in Outlook for Mac. This option is called “View Source” on Outlook for Mac 2016. To find the email headers in Outlook for Mac is pretty straight forward and…
Latest Exchange 2016 CU 6 released in June 2017 The Latest Cumulative Update for Exchange 2016 and now available for download. The latest releases includes fixes and issues reported as well as updated functionality. Updated functionality in Cumulative Update 6 With CU 6 the Exchange team added two highly anticipated features; Sent Items Behavior Control…
Removing Exchange 2013 Client Access Server In this post i will look at removing Exchange 2013 Client access Server from the current Exchange Organization. As this is not the last Exchange Server in the Organization and removing this server will be very straight forward. To start the process we can verify if this server is…