[SeanDav]

I too have had a catch-all @mydomain for around 10 years and it works beautifully for me. In addition to @mydomain I also have 2 email addresses. My main email that I give directly to places I trust like my bank and the second one I direct all my @mydomain email to. This way I only have to remember 2 email addresses, no matter how many @mydomain email addresses I have created (many hundreds by now).

By default I only ever receive a limited number of emails from any new emailx@mydomain, unless I explicitly go to @mydomain and allow a specific emailx@mydomain to pass that limit.

My only irritation is that some vendors block @mydomain as a valid email address, in which case I use an ancient email address in its place. Needless to say that vendor will never see my main email.