Use a private email account with your full name in the email account
name--JoeBlow5589@yahoo.com for example.
The search committee wants to know who it is sending the email to and who it receives email from. Having your name in the account makes things much easier (as opposed to trying to figure out who
booger_eater@yahoo.com really is).
Also, the committee can get cautious when sending email to a business email address (especially in terms of wondering who will have access to the email).
Good luck!