Two. As listed in our license terms[1], "One license per server. Customer must purchase license for each server."
[1] iRedAdmin-Pro license terms: http://www.iredmail.org/pricing.html
Two. As listed in our license terms[1], "One license per server. Customer must purchase license for each server."
[1] iRedAdmin-Pro license terms: http://www.iredmail.org/pricing.html