Merge pull request #589 from dhairyya/dhagarwal_working

Updated shared mailbox guidance

Author: chrisda

defender-office-365/submissions-users-report-message-add-in-configure.md

@@ -93,7 +93,7 @@ After the add-in is installed and enabled, users see the following icons based o
   - Outlook included with Microsoft 365 apps for Enterprise
   - Outlook for iOS and Android
 
-- Currently, reporting messages in shared mailboxes or other mailboxes by a delegate using the add-ins isn't supported. Messages aren't sent to the [reporting mailbox](submissions-user-reported-messages-custom-mailbox.md) or to Microsoft. Built-in reporting in Outlook on the web in shared mailboxes or other mailboxes by a delegate is supported. Messages are sent to the reporting mailbox or to Microsoft.
+- Currently, reporting messages in shared mailboxes or other mailboxes by a delegate using the add-ins isn't supported. Messages aren't sent to the [reporting mailbox](submissions-user-reported-messages-custom-mailbox.md) or to Microsoft. Built-in reporting in Outlook on the web or the new Outlook for Windows in shared mailboxes or other mailboxes by a delegate is supported. Messages are sent according to the reported message destination in user reported settings.
 
 - The add-ins aren't available for on-premises Exchange mailboxes.
 

defender-office-365/tenant-allow-block-list-email-spoof-configure.md

@@ -45,6 +45,10 @@ This article describes how admins can manage entries for email senders in the Mi
 
 - Entries for spoofed senders never expire.
 
+- For blocking inbound and outbound email from a domain, any subdomains in that domain, and any email addresses in that domain, create the block entry using the syntax: `*.TLD`, where `TLD` can be any top-level domain, interal domain, or email address domain.
+
+- For blocking inbound and outbound email from a sudomain in a domain and any email addresses in that subdomain, create the block entry using the syntax: `*.SD1.TLD`, `*.SD2.SD1.TLD`, `*.SD3.SD2.SD1.TLD`, etc. for internal domains and email address domains.
+
 - For details about the syntax for spoofed sender entries, see the [Domain pair syntax for spoofed sender entries](#domain-pair-syntax-for-spoofed-sender-entries) section later in this article.
 
 - An entry should be active within 5 minutes.