For the past few years, emails from Microsoft-related addresses beginning with "v-" were mostly quiet, but lately I've been receiving them almost every day. They often claim to involve licensing or Microsoft 365 services and are followed by calendar invitations, seemingly to confirm that the messages are reaching a real person. Are these typically third-party contractors or sales representatives, and is it still reasonable to ignore them unless they relate to an active support case or another legitimate request?
3 Answers
There are contractors working on Microsoft 365 products such as Teams and SharePoint who use v- addresses, but that doesn’t automatically make every unsolicited message important. I ignore them unless there’s a clear connection to an active ticket or something our organization initiated.
Calendar invites and read receipts can be used to confirm that an address is monitored. You can disable read receipts, and mail systems can also strip read-receipt headers from external messages. That won’t prove whether a sender is legitimate, but it can reduce the tracking and follow-up spam.
In many cases, the v- address indicates a contractor or third-party partner rather than a Microsoft employee contacting you directly. Some of these messages are framed as license audits but turn out to be sales outreach, so ignoring them is generally reasonable unless you already have an open support case or expect contact about a specific Microsoft service.

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