Configuring IMAP for iPhone Sync with Microsoft Exchange 2003 - Clustered Configuration

If you already have an SSL Certificate installed on your Exchange Server for Outlook Web Access(OWA), then you are ready to configure the virtual server. If you don't have an SSL certificate installed on your Exchange server you must either install Certificate Services on Windows Server 2003 and issue an SSL certificate or purchase a commercial certificate through an SSL provider. The process of installing an SSL certificate has been documented, so for simplicity of this article we will not expand on that topic. To configure Secure IMAP, perform these steps.

1. Open Exchange System Manager (ESM) and select , Administrative Group, Servers, Protocols, IMAP4.
2. Right-click the Default IMAP4 Virtual Server and select Properties.
3. Select the Access Tab, and click the Certificate button.
4. Click Next.
5. Select Assign an existing Certificate and click Next.
6. Select the appropriate SSL Certificate and select Next.
7. Click Next, then click Finish.
8. Stop and restart the Default IMAP4 virtual server. Now you have enabled the use of the SSL certificate with IMAP4

The Firewall between the Exchange 2003 IMAP server and the internet will need to be configured to allow traffic on port 993 to the Exchange server you have setup to be the IMAP SSL entry point.