Using classic Outlook for Windows in business environments
Yep - ******@email7.microsoft.com does not appear to be a commonly used Microsoft support or survey domain, so you were right to treat it cautiously. Microsoft typically sends legitimate email from domains ending in microsoft.com, office.com, outlook.com, or trusted subdomains such as mail.microsoft.com. A sender address like email7.microsoft.com can sometimes be used through third-party bulk email services, but it is also the kind of naming pattern commonly seen in phishing campaigns.
A generic “how are we doing?” message with clickable feedback buttons is a very common phishing technique because it encourages quick interaction without making the recipient think carefully. The fact that it followed up after you ignored it does not make it more legitimate - many automated scam campaigns send reminders.
The safest approach is exactly what you already did - do not click links or buttons, delete the message, and verify independently if needed. If you want to check further, inspect the full message headers and look for whether the message passed SPF, DKIM, and DMARC validation for Microsoft-owned domains. Also hover over any links without clicking; phishing emails often redirect to unrelated domains.
If you have not entered credentials or downloaded anything, simply deleting the emails is sufficient. If you did click a link, monitor your Microsoft account activity at account.microsoft.com, change your password if anything looks suspicious, and ensure multi-factor authentication is enabled.
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hth
Marcin