Secure email, best option?

[draggar]

I'm going to set up an email account for my domains (registrar contact, not WhoIs contact).

I'm debating over which domain to use. I have my personal / fun one (draggar.net along with other TLDs) and a "business" one that I own the .com along with other TLDs.

I know I won't use the TLD that the site is based off of (I won't use draggar.net or (business).com). But, should I combine them? Maybe draggar@(business).info?

Any thoughts or suggestions?