Fastmail lets you convert [email protected] to [email protected]

It's not a literal alias, but it works out fine.

One of these days I'm going to propose the Thunderbird + K-9 mail addons that say 'set the sent from email address to be equal to the sent to email address', that way if [email protected] is the recipient, it will be the sender to any replies, rather than the MUA default replying with [email protected] (but that's a separate discussion)

I didn't know that was possible, really neat!

> I typically use throw away email addresses instead since they're free. If I actually want to use the service/account some day I'll sign up properly.

The example above is about giving a direct line to be contacted through email on a personal site or blog, heck even a professional one.

> I expect someday the primary email providers will generate aliases on demand.

I know at least ProtonMail does it. But also theres the email#[email protected] trick that works nicely enough.