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Thanks for your help guys, was finally able to make this work.
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Thanks for your help guys, was finally able to make this work.

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Hi,<br />
<br />
I'm supporting an iPhone syncing Exchange via IMAP. &nbsp;The syncing to the iPhone works well via IMAP (doesn't work outbound, but that's not the question). &nbsp;They want to use secure IMAP over port 443. &nbsp;I configured the Exchange server with a self-signed certificate, assigned it to the IMAP Virtual Server, and opened port 993 on the firewall. &nbsp;I tested the configuration using Outlook Express via IMAP SSL on a computer outside of the network. &nbsp;I get a certificate warning when it connects, but the connection works fine. &nbsp;It doesn't work on the iPhone, though. &nbsp;Does the certificate need to be installed on the device. &nbsp;I see a lot of information online about how to set up the Exchange server, but not much about the iPhone configuration. &nbsp;You're supposed to be able to have SSL on and choose IMAP for incoming email, but the experience I've read from people who've actually tried it is that it doesn't work. &nbsp;Any help is appreciated.<br />

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Hi,

I'm supporting an iPhone syncing Exchange via IMAP.  The syncing to the iPhone works well via IMAP (doesn't work outbound, but that's not the question).  They want to use secure IMAP over port 443.  I configured the Exchange server with a self-signed certificate, assigned it to the IMAP Virtual Server, and opened port 993 on the firewall.  I tested the configuration using Outlook Express via IMAP SSL on a computer outside of the network.  I get a certificate warning when it connects, but the connection works fine.  It doesn't work on the iPhone, though.  Does the certificate need to be installed on the device.  I see a lot of information online about how to set up the Exchange server, but not much about the iPhone configuration.  You're supposed to be able to have SSL on and choose IMAP for incoming email, but the experience I've read from people who've actually tried it is that it doesn't work.  Any help is appreciated.


iPhone syncing over secure IMAP (port 993)

A smartphone or smart phone is a mobile phone with an advanced mobile operating system that combines features of a personal computer operating system with other features useful for mobile or handheld use. They typically combine the features of a cell phone with those of other popular mobile devices, such as personal digital assistant (PDA), media player and GPS navigation unit. Most smartphones can access the Internet, have a touchscreen user interface, can run third-party apps, music players and are camera phones. Most Smartphones produced from 2012 onwards also have high-speed mobile broadband 4G LTE internet, motion sensors, and mobile payment mechanisms.

Smartphones

The iPhone is a smartphone made by Apple Inc. It and the iPad, along with several other mobile devices from Apple, run on the iOS operating system, which has its own topic, as does the iPad for device-specific questions. Native iOS applications are written in Objective-C or in Swift using the Cocoa Touch frameworks or HTML5 compiled with the help of a package manager such as Adobe PhoneGap; a common IDE is Xcode.