[SllX]

In effect, sure, but in implementation these aren’t comparable. Postal services usually come with monopolies and mandates that ISPs, telecoms and email servers usually don’t.

USPS has a monopoly on first-class mail in the US and a Congressional mandate to deliver to every address.

[account42]

> telecoms and email servers usually don’t

Telecoms get a (local) monopoly on parts of the radio spectrum.

[SllX]

And they exist in competition with other telecoms who have different parts of the spectrum, wired service providers and Satellite service providers.

USPS has no direct competition for first-class mail and they have a monopoly over your mailbox (if you’re in the US).