I need more mailboxes. How do I purchase additional Zimbra mailbox licenses?

If you need additional Zimbra mailbox licenses then you just submit an order for the number of additional licenses required in units of 25 mailboxes. The minimum order quantity is 25 mailboxes. Agilemail will process and you then will be issued with an updated Zimbra license which includes existing plus the additional licenses. Fees are not prorated, instead any difference in fees are discounted against the next license renewal.