Why is Outlook defaulting to Aptos?

Could you please elaborate on why Outlook, a popular email client, is reportedly defaulting to Aptos, a relatively new blockchain platform? Is there a strategic partnership or integration that's driving this decision? Are there any specific benefits that Aptos offers that make it a suitable default option for Outlook users? Or is this simply a rumor, and there's no official announcement from either party? Clarifying these points would help us understand the motivation behind this potential change.