Project Overview

Over a decade ago IT-supported email inboxes that were hosted on-premises were migrated to Gmail.

Google has since improved Gmail's security features (previously known as Postini), so we no longer require the use of on-promises email security appliances (ESAs).

As shown below, current SMTP traffic to lbl.gov (and some other domains) recipients routes to mailgate.lbl.gov (an on-premises load-balancer) before arriving at the ESAs to be checked for spam, viruses and mail servers with poor reputations before being further routed to their destination at Gmail or to LBNL Certified Mail Servers (aka Email Repositories).

Current SMTP routing configuration

By eliminating the routing of email to these on-premises load-balancer and appliances, we gain the added benefit of increasing email resiliency during events such as PSPS.

More details for Email Repository owners