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Re-routing incoming email for a multi-tenant database system

  • US 9,264,388 B2
  • Filed: 05/17/2013
  • Issued: 02/16/2016
  • Est. Priority Date: 05/18/2012
  • Status: Active Grant
First Claim
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1. A method for processing email for a multi-tenant database system comprising a plurality of data centers and a plurality of instances of a multi-tenant database system core, each of the plurality of data centers implementing at least one of the plurality of instances of the multi-tenant database core, the method comprising:

  • maintaining, at each of the plurality of data centers, an instantiation of a private domain name service (DNS) database, the private DNS database comprising a respective DNS entry for every possible combination of one of the plurality of data centers and one of the instances of the multi-tenant database system core;

    receiving an incoming email at a first local mail transfer agent (MTA) of a first data center of the plurality of data centers, the incoming email directed to an incoming email address comprising a first domain string that includes a pod token;

    redirecting the incoming email to a redirected email address comprising a second domain string that includes the pod token and a data center token that identifies the first data center;

    obtaining, from the instantiation of the private DNS database maintained at the first data center, a destination location for the redirected email address, wherein the destination location is obtained from the respective DNS entry that includes a combination of the pod token and the data center token; and

    routing the incoming email to the destination location.

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