The update for Microsoft Outlook for iOS and Android will allow external recipient warnings to function offline by caching MailTip service results, with a rollout from mid-August to late September 2024. Organizations can manage this feature by configuring a list of internal domains. Users should be informed of these changes.
This feature update expands how Microsoft Outlook for iOS and Android gives external recipient warnings when the client cannot reach the MailTip service.
When this will happen:
General Availability (Worldwide, GCC, GCC High, DOD): We will begin rolling out mid-August 2024 and expect to complete by late September 2024.
How this will affect your organization:
This feature update is available by default.
What you need to do to prepare:
Manage the option to provide a list of external domains to provide external recipient MailTip warnings by Outlook for iOS and Android. For more information, see External recipients MailTip offline domain configuration.
You may want to notify your users about this change and update any relevant documentation as appropriate.