The process of setting up IMAP RCN mail account on Apple iPad is discussed in this blog post. If you are interested in knowing this process, then all you have
How to setup or add your Gmail account to Outlook. Best and authentic way to configure Gmail account in Microsoft Outlook quickly by using IMAP/POP details.
Yahoo! Zimbra Desktop - It's an offline capable client so you can take your data with you whenever you don't have internet access powerd with Ajax technology. Working offline is major feature integrated with Zimbra soon after Google adding offline access through open source gear projects. You can access Zimbra Mail. Yahoo! Mail. Gmail. AOL in one common place. Even Outlook and other business e-mail account can be accessed using POP or IMAP.