I've received notifications and newsletters from Microsoft and Facebook in the past and noticed that both emails came not from an address such as firstname.lastname@example.org or email@example.com.
Not event firstname.lastname@example.org but both had different domains such as :
email@example.com and firstname.lastname@example.org
Why is this? Any particular advantage in doing so?
Other than not polluting the employees email software, I can't see.