mail server

The SSL certificate for mx-caprica.zoneedit.com has expired and appears to be causing issues for mailmaps on my domain with SMTP severs that require a valid certificate.

Can I set up an email account in web.zone as a Catch-all such that <anything>@<mydomain> will be accepted into the email account? Can I do this with the "Hobby" account, or do I need a higher level account? I don't need a web server, just DNS and a catch-all email.