We will be performing an upgrade to the SocketLabs Email On-Demand systems on Monday May 16th beginning at 9:00 PM EDT. The upgrade is expected to take 60 minutes or less. During that time, the SocketLabs Email On-Demand control panel and API will be unavailable. Email injection and delivery will not be affected and will continue to run throughout the upgrade. This upgrade is primarily targeted at our infrastructure, and will give us far greater control of our cloud resources. It will enable us to programmatically shift resources as necessary to balance loads and provide increased availability during an unexpected failure. We will also be expanding our API to enable customers to query on message and mailing identifiers which they have tagged their messages with.