Privately held LiveOffice, the provider of cloud-based email archiving, compliance, discovery, and backup services, said today that it had another quarter of record revenue. The firm--which did not disclose actual revenue numbers--said it had a 419 percent, year-over-year increase in the number of mailboxes it is archiving, as a result of enterprise wins. LiveOffice is backed by Summit Partners, and is headed by Nick Mehta.