I have a similar setup, but use it on a subdomain, e.g. *@sub.example.com This makes it harder to just randomly spam <anything>@example.com because you need th

I have a similar setup, but use it on a subdomain, e.g. *@sub.example.com This makes it harder to just randomly spam <anything>@example.com because you need the subdomain, which is what spammers do - just randomly generate local parts that might exist. info, john, sales, etc.