Dear team,

I'm using free Zoho Mail account linked with my own domain.

Since the new free account doesn't support IMAP/POP access, if I pay for one user, does the price for 'one user' means one email address or all emails addresses under same domain? 

If mean one email address, then if I pay for only 1 or 2 users but not for the rest with same domain, is there any affect caused to the unpaid users? 
Thanks.