What is a catch-all forwarder? A catch-all forwarder allows any email address @yourdomain.com will go to your chosen destination.
If you want to easily add a catch-all email forwarder for your custom domain, this is how you can do it with cloudflare (free)…
STEP 1: Go over to this free service: ImprovMX
STEP 2: Login to your Cloudflare Account
STEP 3: In Cloudflare – go to your Domain DNS Tab
STEP 4: In Cloudflare – Add 2 MX Records as follows…
STEP 5: Go to ImprovMX and verify with the email you want to use to forward…
Important addendum 12/26/18: Follow this link for instructions on how you can now reply to your forwarded email using your domain – example: firstname.lastname@example.org/net/co etc from your gmail address: https://improvmx.com/guides/send-emails-using-gmail