“My husband is a university professor, and he rarely checks his mail. Maybe once every three months. Nothing important comes in the mail anymore.”
I administrated a molecular biology lab at UT for years for a professor. I collected his mail every day.
It probably varies by the workplace (perhaps there is more actual mail of any importance for a lawyer or doctor) but in most workplaces the physcial mail is now irrelevant.
Very little is sent or received through physical mail anymore (though at my last place of employment, since we did not have classified network access, the ONE thing that we used the mail for was to send and receive classified CDs.)
At my current place of employment I have no “mailbox” (that I know of), and haven’t sent or received anything in the mail, ever.
That people can generate ever-sillier additions to the Grand Conspiracy Theory from the fact the package sat in a room for a week is beyond ridiculous.