Hi Hampton Hill,
Thanks for reaching out to the Microsoft Q&A forum.
From what you described, it seems you received an online support request but chose not to accept it due to concerns about a potential scam, and then you also received a follow-up email regarding the support issue, correct? Just to clarify, had you previously contacted Microsoft Support through Outlook (as shown in the screenshot below), or did you reach out using a different method?
Regarding your initial question, I can confirm based on this official Microsoft article: How to determine if an email from Microsoft support is genuine - Azure | Microsoft Learn, that the domain microsoftsupport.com is listed as one of the valid domains used by Microsoft Support. That said, your caution is absolutely justified. Even though the domain is legitimate, phishing emails can still be crafted to appear as if they come from trusted sources. I recommend reviewing this article for further guidance: Protect yourself from phishing - Microsoft Support. As a general rule, avoid clicking on any suspicious links or opening unexpected attachments from emails you’re unsure about.
As for the issue of missing emails in your inbox over three years, I’m really sorry to hear that. Unfortunately, as a Q&A forum moderator, I’m unable to assist with data recovery or issues related to personal accounts. However, I did find an article that might be helpful: Email is missing from your Outlook.com inbox - Microsoft Support. One point mentioned in the article that I think you might want to pay attention to is about the Microsoft Services Agreement, so I am sending it here.
Hope this information is useful and helps clarify your concerns. If you have any further questions, feel free to ask!
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