It was the U.S. Postal Service.. which I find is odd for them to be calling me versus sending me promotional e-mails as I am a USPS customer. Blocked them.
Claims to be Delores from the US Postal Service. Missed the call, but did leave a voicemail, which is very unusual for spam calls. Got the whole message too, not with the beginning cut off because the robocaller didn't notice it was voicemail and not a person.