Yes. The following is a simple explanation of the emails provided by the Red Rook hosting Packages
Email Boxes (POP Accounts)
3 POP email addresses for Starter hosting package
5 POP email addresses for SmallBiz hosting package
100 POP email addresses for Business hosting package
For extra POP accounts $3.30 per month (not available with Basic 10)
Bulk discounts apply for quantities over 50 POP accounts
Email Addresses (Aliases for the Same POP)
Unlimited Aliases are provided for all hosting packages