[mgfist]

Whoever has less power has the responsibility. If the IRS sends you a notice about an audit or something (just as an example), and you miss that because of an unorganized inbox, that's on you. If an entrepreneur emails you for capital and you don't respond, that's on them to follow up.

[m348e912]

If the "IRS" is sending you an email, you're probably being scammed. The real IRS sends letters, via traditional post.

In fact, the IRS seems to be anti-technology IMO. IRS.gov has the dumbest password policy I have ever encountered. In your password, you must use subset of 8 special characters, but only once, and it can't be at the beginning or the end of the password. Of course they won't explain that requirement, they will just happily tell you that your password is not valid until you give up. (hopefully this is no longer the case)

[mgfist]

Was just an example. But point still stands with snail mail which many people (myself included) don't go through all that carefully.