Applies to: Exchange Server 2013

This cmdlet is available only in on-premises Exchange Server 2013.

Use the Suspend-Message cmdlet to prevent delivery of a particular message in a queue on a Mailbox server or an Edge Transport server.

Suspend-Message -Filter <String> [-Server <ServerIdParameter>] <COMMON PARAMETERS>
Suspend-Message -Identity <MessageIdentity> <COMMON PARAMETERS>
COMMON PARAMETERS: [-Confirm [<SwitchParameter>]] [-WhatIf [<SwitchParameter>]]

This example prevents delivery of all messages for which the following conditions are true:

  • The messages are sent by the sender

  • The messages are queued on the server Server1.

Suspend-Message -Server Server1 -Filter {FromAddress -eq ""}

A message already in delivery won't be suspended. Delivery will continue and the message status will be PendingSuspend. If the delivery fails, the message will re-enter the queue and it will then be suspended. You can't suspend a message that's in the Submission queue or poison message queue.

A message being sent to multiple recipients might be located in multiple queues. If you specify an Identity parameter, the message is suspended in a single queue if that identity matches only a single message. If the identity matches more than one message, you receive an error. To suspend a message in more than one queue in a single operation, you must use the Filter parameter.

For instructions on how to resume a suspended message, see Resume-Message.

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the "Queues" entry in the Mail flow permissions topic.


Parameter Required Type Description




The Filter parameter specifies one or more messages by using OPath filter syntax. The OPath filter includes a message property name followed by a comparison operator and value, for example, {FromAddress -like "*"}. For details about filterable message properties and comparison operators, see Message filters and Use the Exchange Management Shell to manage queues.

You can specify multiple criteria by using the and comparison operator. Property values that aren't expressed as an integer must be enclosed in quotation marks (").




The Identity parameter specifies the message. Valid input for this parameter uses the syntax Server\Queue\MessageInteger or Queue\MessageInteger or MessageInteger, for example, Mailbox01\\5 or 10. For details about message identity, see the "Message identity" section in Use the Exchange Management Shell to manage queues.




The Confirm switch can be used to suppress the confirmation prompt that appears by default when this cmdlet is run. To suppress the confirmation prompt, use the syntax -Confirm:$False. You must include a colon ( : ) in the syntax.




The Server parameter specifies the Exchange server on which you want to run this command. You can use any value that uniquely identifies the server. For example:

  • Name

  • FQDN

  • Distinguished name (DN)

  • Exchange Legacy DN

If you don't use the Server parameter, the command is run on the local server.

You can use the Server parameter and the Filter parameter in the same command. You can't use the Server parameter and the Identity parameter in the same command.




The WhatIf switch instructs the command to simulate the actions that it would take on the object. By using the WhatIf switch, you can view what changes would occur without having to apply any of those changes. You don't have to specify a value with the WhatIf switch.

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.