EXOSafeAttachmentRule

Parameters

Parameter Attribute DataType Description Allowed Values
Identity Key String The Identity parameter specifies the name of the SafeAttachment rule that you want to modify.
SafeAttachmentPolicy Required String The SafeAttachmentPolicy parameter specifies the name of the SafeAttachment policy that's associated with the SafeAttachment rule.
Enabled Write Boolean Specify if this rule should be enabled. Default is $true.
Priority Write UInt32 The Priority parameter specifies a priority value for the rule that determines the order of rule processing. A lower integer value indicates a higher priority, the value 0 is the highest priority, and rules can't have the same priority value.
Comments Write String The Comments parameter specifies informative comments for the rule, such as what the rule is used for or how it has changed over time. The length of the comment can't exceed 1024 characters.
ExceptIfRecipientDomainIs Write StringArray[] The ExceptIfRecipientDomainIs parameter specifies an exception that looks for recipients with email address in the specified domains. You can specify multiple domains separated by commas.
ExceptIfSentTo Write StringArray[] The ExceptIfSentTo parameter specifies an exception that looks for recipients in messages. You can use any value that uniquely identifies the recipient.
ExceptIfSentToMemberOf Write StringArray[] The ExceptIfSentToMemberOf parameter specifies an exception that looks for messages sent to members of groups. You can use any value that uniquely identifies the group.
RecipientDomainIs Write StringArray[] The RecipientDomainIs parameter specifies a condition that looks for recipients with email address in the specified domains. You can specify multiple domains separated by commas.
SentTo Write StringArray[] The SentTo parameter specifies a condition that looks for recipients in messages. You can use any value that uniquely identifies the recipient.
SentToMemberOf Write StringArray[] The SentToMemberOf parameter looks for messages sent to members of groups. You can use any value that uniquely identifies the group.
Ensure Write String Specify if this rule should exist or not. Present, Absent
Credential Write PSCredential Credentials of the Exchange Global Admin
ApplicationId Write String Id of the Azure Active Directory application to authenticate with.
TenantId Write String Id of the Azure Active Directory tenant used for authentication.
CertificateThumbprint Write String Thumbprint of the Azure Active Directory application's authentication certificate to use for authentication.
CertificatePassword Write PSCredential Username can be made up to anything but password will be used for CertificatePassword
CertificatePath Write String Path to certificate used in service principal usually a PFX file.

EXOSafeAttachmentRule

Description

This resource configures an Safe Attachment Rule in Exchange Online.

Parameters

SafeAttachmentPolicy

  • Required: Yes
  • Description: The Identity of the SafeAttachment Policy to associate with this SafeAttachment Rule.

Ensure

  • Required: No (Defaults to 'Present')
  • Description: Specifies if the configuration should be Present or Absent

Credential

  • Required: Yes
  • Description: Credentials of the account to authenticate with

Identity

  • Required: Yes
  • Description: Name of the Safe Attachment Rule

Example

        EXOSafeAttachmentRule TestSafeAttachmentRule {
            Ensure = 'Present'
            Identity = 'TestRule'
            Credential = $Credential
            SafeAttachmentPolicy = 'TestPolicy'
            Enabled = $true
            Priority = 0
            RecipientDomainIs = @('contoso.com')
        }

Examples

Example 1

This example is used to test new resources and showcase the usage of new resources being worked on. It is not meant to use as a production baseline.

Configuration Example
{
    param
    (
        [Parameter(Mandatory = $true)]
        [PSCredential]
        $credsGlobalAdmin
    )
    Import-DscResource -ModuleName Microsoft365DSC

    node localhost
    {
        EXOSafeAttachmentRule 'ConfigureSafeAttachmentRule'
        {
            Identity                  = "Research Department Attachment Rule"
            Comments                  = "Applies to Research Department, except managers"
            Enabled                   = $True
            ExceptIfSentToMemberOf    = "Research Department Managers"
            SafeAttachmentPolicy      = "Research Block Attachments"
            SentToMemberOf            = "Research Department"
            Ensure                    = "Present"
            Credential                = $credsGlobalAdmin
        }
    }
}