Subdomain aliasing

Does MIAB permit for subdomain aliasing?

That is, emails to anything@user.domain.tld will effectively work as if they are sent to user+anything@domain.tld.

Or is the configuration for something like this beyond the scope or aims of the project?

A reason why it is useful is, you can create, on-the-fly, unique addresses for each service etc. Plus addressing is the standard, I know, but I have encountered forms that do not accept the plus character, and I don’t doubt that anything beyond the plus will be stripped, should an entity you have given your address to chooses to do something shady.

I haven’t tried this, but I think if you create a catch-all alias to forward anything@user.domain.tld to user@domain.tld, but I’m not sure how to have the server automatically create addresses.