Hi,
It is not a disposable email address. It is an alias. I apply aliases to every account I sign up for. Banks, cellular providers, airlines, etc. The alias forwards the email back to my primary email address. That way I can maintain my privacy and not have spam going direct to my primary email. Also, I can filter any spam messages based on which alias receives it.
It is a sensible way to handle email accounts. Right now I could generate a fresh gmail address and give you that as my contact detail. Now that (gmail) would really be a disposable address.
If my alias email is "disposable" then how come I am seeing daily "LetsEncrypt" warning email alerts showing up on it. Disposable = Use it once for an hour, and then it disappears.
Alias: yncfvzbi@anonaddy.me
Alias service: https://addy.io
Regards,
Jordan.