Who even can be sure microsoftonline.com is legit. Microsoft's domain story is such a mess, I wouldn't be surprised if not even internally they have one complete list of all the domain assets they own.
But they are not alone. It is kind of ironic when companies insist that we check the domain to spot spam but are unable publish a list with all domains they officially use to send mail.
Such a list will never exist in an organisation of this size, with the amount of delegated management and operations required for these functions. In fact, it’s unlikely such a list is even _allowed_ to exist given the sensitive nature of some areas of the business, being a publicly traded company which works directly with regulated entities and governments.
It’d be interesting to hear a senior old-timer from MS to weigh in on their blog about this, and similar/adjacent problems that arise from working across such a colossal entity.
It’s a wonder they ever release anything new, if I’m being completely honest. The amount of governance, hoops, process and procedure across every aspect of their business must be staggering.
A while back I had a reservation with a hotel on Booking and I received a phish attempt that came directly via the Booking site domain email and also DMs but "sent" by the hotel. When I looked into it at the time, it seemed less like an issue of hotels specifically having their accounts infiltrated and more like some kind of message/email endpoint on Booking's end was being abused in a similar manner.
I'm not sure this is the same type of issue but found this interesting, especially since apparently it's been reported to MS and no action has been taken.
The ones I've seen from PayPal are basically from sending a large request for money to you, then in the freeform text field for the reason, putting fake "if you believe this is a scam, call [actually a scam number]" text.
Typically it's a mis-placed feature. Something like "send an email alert when a thing happens" and they let you control what goes in the message body as well as who the message should be sent towards. Sounds reasonable on the surface, but without guardrails it lets folks send arbitrary emails from your domain.
But they are not alone. It is kind of ironic when companies insist that we check the domain to spot spam but are unable publish a list with all domains they officially use to send mail.
It’d be interesting to hear a senior old-timer from MS to weigh in on their blog about this, and similar/adjacent problems that arise from working across such a colossal entity.
It’s a wonder they ever release anything new, if I’m being completely honest. The amount of governance, hoops, process and procedure across every aspect of their business must be staggering.
That's because people report them as spam, so they hop domains to avoid that.
I'm not sure this is the same type of issue but found this interesting, especially since apparently it's been reported to MS and no action has been taken.
Do other email providers penalize that specific domain only, or all microsoft domains to a tiny degree?
Typically it's a mis-placed feature. Something like "send an email alert when a thing happens" and they let you control what goes in the message body as well as who the message should be sent towards. Sounds reasonable on the surface, but without guardrails it lets folks send arbitrary emails from your domain.