In Application Emailing

A lot of modern app integrate features like "share by email", or "contact support by email". Instead of closing your app and launching the external default Mail app to send out a mail, a better alternative is using the MessageUI framework and the MFMailComposeViewController to have the default "New Mail" dialog integrated into your app, so that the user can write and send the mail using an dialog he already knows, but without leaving your app.

The MFMailComposeViewController class allows you to prefill the Subject, To and Body fields, as well as attaching files to the mail. However, the user can change anything before tapping the Send button, which is what actually puts the mail in the device’s Outcoming Queue. This article explains how to use this useful and simple-to-use controller class.

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