ZCS Administrator's Guide Network Edition 6.0.8
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Working with Zimbra Proxy : Zimbra IMAP/POP Proxy

Zimbra IMAP/POP Proxy
Zimbra IMAP/POP Proxy allows end users to access their Zimbra Collaboration Suite (ZCS) account using end clients such as Microsoft Outlook, Mozilla Thunderbird, or other POP/IMAP end client software. End users can connect using POP3, IMAP, POP3S (Secure POP3), or IMAPS (Secure IMAP).
For example, proxying allows users to enter imap.example.com as their IMAP server. The proxy running on imap.example.com inspects their IMAP traffic, does a lookup to determine which backend mailbox server a user’s mailbox lives on and transparently proxies the connection from user’s IMAP client to the correct mailbox server.
Zimbra Proxy Ports for POP/IMAP
The following ports are used either by Zimbra Proxy or by Zimbra Mailbox. If you have any other services running on these ports, turn them off.
End clients connect directly to Zimbra Proxy, using the Zimbra Proxy Ports. Zimbra Proxy connects to the Route Lookup Handler or Zimbra Mailbox using the Zimbra Mailbox Ports.
 
Setting up IMAP/POP Proxy after HTTP Proxy
Zimbra Proxy is installed with ZCS and is set up during Installation from the ZCS configuration menus. Zimbra proxy must be installed on the identified proxy nodes in order to set up HTTP proxy. No other configuration is usually required.
To set up IMAP/POP proxy after you have already installed Zimbra http proxy, set up the Zimbra mailbox server and the proxy node as described in the following two sections.
Note: You can run the command as zmproxyconfig -r, to run against a remote host. This requires the server to be properly configured in the LDAP master.
Setting Up IMAP/POP Proxy With Separate Proxy Node
When your configuration includes a separate proxy server follow these steps.
Setup Zimbra Mailbox Servers
1.
/opt/zimbra/libexec/zmproxyconfig -e -m -H mailbox.node.service.hostname
This configures the following:
2.
a.
b.
Setup Proxy Node
1.
/opt/zimbra/libexec/zmproxyconfig -e -m -H proxy.node.service.hostname
This configures the following:
Setting Up a Single Node
When Zimbra proxy is installed along with ZCS on the same server, follow this step.
1.
/opt/zimbra/libexec/zmproxyconfig -e -m -H mailbox.node.service.hostname
This configures the following:
2.
a.
b.

Working with Zimbra Proxy : Zimbra IMAP/POP Proxy

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ZCS Administrator's Guide Network Edition 6.0.8
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