Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi ReidSprague,
About the prompt you mentioned, generally, this prompt is because Outlook has found your autodiscover SRV record that is configured for the email domain @contoso.com. For more information about configuring SRV records for autodiscover, you can use Nslookup to check your domain’s SRV record. The warning is expected and can be safely ignored or suppressed. When this warning message occurs, you may choose not to be asked about the specific website again.
You can refer to this link to help you suppress the warning message from occurring in your organization : https://support.microsoft.com/en-us/help/2480582/how-to-suppress-the-autodiscover-redirect-warning-in-outlook-2010-and
Thanks,
Linda