To help me escape from the e-mail pressure, I actually bought my own domain a few years ago.
I check my personal and business e-mail as often as I like. For individual shows, I create a specific address (showtitle@) and distribute that on the contact lists. I only check the show address on work days, within work hours.
There's a great rationalization for it, too: by handling my e-mail in this manner, I don't have to worry about tagging or filing or archiving my inbox, because everything is already sorted by show. (If stuff gets sent to the wrong account, you just forward it along. If it needs to be placed in multiple accounts, ditto.) With that in mind, if you'd be so kind as to direct show-related correspondence to the show address...
Owning the domain also gives me a very very basic website which I use to host a CV and contact page. Costs me about $10 a year all told, and in my view it's totally worth it. (I'll also confess that, when I'm reading applications and hiring, I'd much rather see yourname@yourdomain.com, rather than yourname_4412b$%^#x@gmail.com or--even worse--sexylips4412@theatreschool.edu.)