[kop316]

In that instance you can. What is also nice though is if you have a custom domain, you can set the custom domain to do the same thing AND have an alias.

So for me, I have a few emails in my custom domain:

{firstname}@example.com

[e-mail]

(there's others, but it's not relavent to this discussion).

[e-mail] just goes straight to spam, as I don't use that email for anything. [e-mail] is used for each email instance. It works out extremely well.

[mkskm]

It looks like you can accomplish this directly with Fastmail as well using aliases, e.g. [e-mail] (or one of their pseudonyms).