With the release of Apple's iPhone SDK now come and gone, and the enhanced IT-oriented capabilities planned for the next major iPhone software update in June, it's clear that the iPhone are going to be corporate mainstays. Still, at its heart, the iPhone is a consumer device, so IT leaders still have to ensure that the iPhones that come in the door fit their data management and security strategies.

[ Get the whole scoop on the iPhone SDK, how to make the iPhone fit in the enterprise, and the latest security issues that the popular smartphone raises in InfoWorld's special report. ]

So, where to begin gearing up the iPhone for use at work? How can you satisfy executive demands to make the iPhone fit for corporate essentials while maintaining security and manageability? For those looking to get a jump on business-enabling the iPhone, here's a handy guide on what's currently possible and how to get it done. (Note that everything here applies to the iPhone's voiceless cousin, the iPod Touch with the January 2008 software update.)

Accessing corporate e-mail
IBM's promise of a Lotus Notes client for the iPhone remains unfulfilled. The iPhone 2.0 software update due in June will add an Exchange client. But in the meantime, if your business uses either system, you can provide e-mail access today via POP3 or IMAP, popular protocols that many businesses already support. In either case, the iPhone's Mail setup is where to begin configuring host addresses, user names, passwords, and SSL authentication.

A tip for Exchange: Even though the iPhone's current Mail setup includes an Exchange pane, don't use it. Use IMAP instead; the Exchange pane doesn't work. (Even Apple's support pages say to use the IMAP pane.)

Many businesses prefer IMAP over POP3 because IMAP provides greater control over message management, such as keeping the mail folders synchronized as mail is moved on any client. The iPhone will connect to the IMAP server and detect most settings automatically, making setup easy in most cases.

You can adjust the SSL settings, IMAP path prefix, server port, and other such settings by scrolling down to the Advanced portion of an individual mail account's setup area. Note that the iPhone's SSL options have been significantly enhanced from the first iteration's number-only token scheme.