Added info about admin notifications for attachments only

Per support case

Author: chrisda

exchange/exchange-ps/exchange/New-MalwareFilterPolicy.md

@@ -372,8 +372,10 @@ Accept wildcard characters: False
 ### -EnableExternalSenderAdminNotifications
 The EnableExternalSenderAdminNotifications parameter enables or disables sending malware detection notification messages to an administrator for messages from external senders. Valid values are:
 
-- $true: When malware is detected in messages from external senders, send notification messages to the email address that's specified by the ExternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomExternalBody, and CustomExternalSubject parameters.
-- $false: When malware is detected in messages from external senders, don't send administrator notifications. This is the default value.
+- $true: When malware attachments are detected in messages from external senders, send notification messages to the email address that's specified by the ExternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomExternalBody, and CustomExternalSubject parameters.
+- $false: When malware attachments are detected in messages from external senders, don't send administrator notifications. This is the default value.
+
+**Note**: Admin notifications are sent only for _attachments_ that are classified as malware.
 
 ```yaml
 Type: Boolean
@@ -431,8 +433,10 @@ Accept wildcard characters: False
 ### -EnableInternalSenderAdminNotifications
 The EnableInternalSenderAdminNotifications parameter enables or disables sending malware detection notification messages to an administrator for messages from internal senders. Valid values are:
 
-- $true: When malware is detected in messages from internal senders, send notification messages to the email address that's specified by the InternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomInternalBody, and CustomInternalSubject parameters.
-- $false: When malware is detected in messages from internal senders, don't send administrator notifications. This is the default value.
+- $true: When malware attachments are detected in messages from internal senders, send notification messages to the email address that's specified by the InternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomInternalBody, and CustomInternalSubject parameters.
+- $false: When malware attachments are detected in messages from internal senders, don't send administrator notifications. This is the default value.
+
+**Note**: Admin notifications are sent only for _attachments_ that are classified as malware.
 
 ```yaml
 Type: Boolean

exchange/exchange-ps/exchange/Set-MalwareFilterPolicy.md

@@ -398,8 +398,10 @@ Accept wildcard characters: False
 ### -EnableExternalSenderAdminNotifications
 The EnableExternalSenderAdminNotifications parameter enables or disables sending malware detection notification messages to an administrator for messages from external senders. Valid values are:
 
-- $true: When malware is detected in messages from external senders, send notification messages to the email address that's specified by the ExternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomExternalBody, and CustomExternalSubject parameters.
-- $false: When malware is detected in messages from external senders, don't send administrator notifications. This is the default value.
+- $true: When malware attachments are detected in messages from external senders, send notification messages to the email address that's specified by the ExternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomExternalBody, and CustomExternalSubject parameters.
+- $false: When malware attachments are detected in messages from external senders, don't send administrator notifications. This is the default value.
+
+**Note**: Admin notifications are sent only for _attachments_ that are classified as malware.
 
 ```yaml
 Type: Boolean
@@ -457,8 +459,10 @@ Accept wildcard characters: False
 ### -EnableInternalSenderAdminNotifications
 The EnableInternalSenderAdminNotifications parameter enables or disables sending malware detection notification messages to an administrator for messages from internal senders. Valid values are:
 
-- $true: When malware is detected in messages from internal senders, send notification messages to the email address that's specified by the InternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomInternalBody, and CustomInternalSubject parameters.
-- $false: When malware is detected in messages from internal senders, don't send administrator notifications. This is the default value.
+- $true: When malware attachments are detected in messages from internal senders, send notification messages to the email address that's specified by the InternalSenderAdminAddress parameter. You can customize the notification message using the CustomFromAddress, CustomFromName, CustomInternalBody, and CustomInternalSubject parameters.
+- $false: When malware attachments are detected in messages from internal senders, don't send administrator notifications. This is the default value.
+
+**Note**: Admin notifications are sent only for _attachments_ that are classified as malware.
 
 ```yaml
 Type: Boolean