ZCS Administrator's Guide Network Edition 6.0.8
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Working with Zimbra Proxy : Zimbra Proxy Architecture and Flow

Zimbra Proxy Architecture and Flow
The following sequence shows the architecture and flow of Zimbra Proxy.
1.
2.
When Zimbra Proxy receives an incoming connection, the Nginx component sends an HTTP request to the Zimbra Proxy Route Lookup Handler component.
3.
Zimbra Proxy Route Lookup Handler locates the route information for the account being accessed and returns this information to Nginx.
4.
The Memcached component stores the route information for the configured period of time. By default, this time is one hour. Nginx will use this route information until the default period of time has expired, instead of querying the Zimbra Proxy Route Lookup Handler .
5.
6.
Zimbra Proxy connects to Zimbra Mailbox and initiates the mail proxy session. The end client behaves as if it is connecting directly to Zimbra Mailbox.

Working with Zimbra Proxy : Zimbra Proxy Architecture and Flow

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ZCS Administrator's Guide Network Edition 6.0.8
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