I use Apple's mail.app for everyday email, and had been using it for business purposes as well. But now with a job shift I needed a new, non-private email address and got a gmail account. The question is, am I better off operating gmail through the mail.app interface? Or reserving mail.app for regular personal stuff and moving all the business (publishing) stuff over to gmail? Or forwarding everything from gmail to mail.app? Or? Or?

I've read everything I could find on the subject, and while it's been informative it hasn't nudged me toward a useful either/or. I'll be dealing with a lot of incoming manuscripts that want reading and responding and rejecting or filing away for future use. Previously this stuff came to me via an intermediary; now it'll come directly to my gmail address, published on the publisher's website.