If you have your own domain(s) you can have as many email addresses as you want

• domain and email can be cheaply hosted by like pair.com, in my experience, & they have nice tools for managing it, reading online, POP/IMAP to your PC, lists
• Or maybe you can just do multiple emails via pobox.com (years since I tried them--were very useful then)
• then you can create new addresses like "john1234@johndoe.name" or "employee1@somebiglongthingwithanumber.com"
• Then you could even track to whom you give what email, and maybe block ones that start getting over-spammed, etc, if/as desired.