Does Cloud Email really need third party archiving?
Conclusion: when considering Cloud based email (Microsoft or Google) organisations should critically re-evaluate the need for third party Email Archive add-ons. Since Cloud-based email has virtually unlimited mailbox capacity the archive/storage management features of third party Email Archive add-ons many not be needed.
For many organisations the native compliance and eDiscovery features in Cloud based email are satisfactory and will rapidly mature and improve over time. Organisations that are very large, highly regulated, or at risk of litigation should evaluate the benefit of the more comprehensive, and more polished, third party Email Archive add-ons, whether that be Cloud or On-premises.