Create Mailbox activity

  • Release version: Australia
  • Updated March 12, 2026
  • 2 minutes to read
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    Summary of Create Mailbox activity

    The Create Mailbox activity allows you to create a new Active Directory user and a Microsoft Exchange mailbox, provided that the user does not already exist. It utilizes the Microsoft Exchange New-Mailbox command and is accessible through the Workflow Editor under the Custom tab, in Custom Activities > Exchange > Mailbox. This activity replaces a previously available Exchange activity in earlier releases.

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    Key Features

    • Input Variables: Essential variables include hostname (Exchange server's hostname), domain (assigned domain), firstname, middleinitial, lastname, alias, and password. Optional parameters can be passed in JSON format, with special handling for data types.
    • Output Variables: The activity returns results indicating either success or failure, error messages, and raw XML payload from the Exchange server that includes all Exchange attributes.
    • Conditions: The activity indicates success when a mailbox and Active Directory account are created, and failure if these actions do not succeed.

    Key Outcomes

    By utilizing the Create Mailbox activity, administrators can efficiently manage user accounts and mailboxes in Microsoft Exchange, ensuring streamlined operations and improved user management within ServiceNow environments. New workflows must adopt this custom version following the upgrade to Geneva, while existing workflows using the deprecated version will continue to function without disruption.

    The Create Mailbox activity creates a new Active Directory user, if that user does not already exist, and a Microsoft Exchange mailbox for that user.

    This activity implements the Microsoft Exchange New-Mailbox command.

    To access this activity in the Workflow Editor, select the Custom tab, and then navigate to Custom Activities > Exchange > Mailbox.
    Note:
    This activity replaces an Exchange activity by the same name available in releases prior to Geneva. If you have a workflow created in a previous version that uses the deprecated activity, your workflow will continue to work normally after upgrading to Geneva. However, all new workflows must use the custom version of this activity. This activity was built with the PowerShell activity designer, which gives workflow administrators the ability to store input and output variables in the databus.

    Input variables

    Table 1. Create Mailbox input variables
    Variable Description
    hostname The hostname of the Exchange server with which the activity interacts. Do not enter an IP address in this variable.
    domain The name of the Exchange server's assigned domain.
    Important:
    The MID Server must be in the same domain as the Exchange server.
    first_name First name of the user.
    middle_initial Middle initial of the user.
    last_name Last name of the user.
    alias The display name for the mailbox address, the part of the email address to the left of the @ symbol. If no alias is specified, the activity uses First name.Last name as the alias. The alias is also used as the user's principal name (UPN) if none is specified in the optional parameters.
    password Password to use for the new mailbox. The password is encrypted when it is sent to the target host.
    parameters Optional parameters to pass to the Exchange server written in JavaScript Object Notation (JSON). Exchange activities cannot pass parameters that reference an object, such as a PSCredential object. Plain text is automatically converted to SecureString objects for parameters that require that data type.
    Attempting to save an activity that specifies duplicate parameters, including parameters from activity variables, or incorrectly formatted JSON causes a warning message to appear.
    Note:
    When passing a switch parameter, such as ForceUpgrade, you must use the format "parameter":"true".

    Output variables

    Table 2. Create Mailbox output variables
    Variable Description
    result Either success or failure.
    error Error message if the operation fails.
    output Raw XML payload from the Exchange server. This data includes all Exchange attributes.

    Conditions

    Table 3. Create Mailbox conditions
    Condition Description
    Success The activity succeeded in creating a new mailbox for the specified user. If no Active Diectory account existed for that user, this activity succeeded in creating a new account.
    Failure The activity failed to create a new mailbox or an Active Directory account for the specified user.