3. #import <MessageUI/MessageUI.h>

MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init];//设置委托mc.mailComposeDelegate = self;//设置邮件主题[mc setSubject:@"Hello World!"];//设置收件人[mc setToRecipients:[NSArray arrayWithObjects:@"zhuqi@163.com"]];//设置cc[mc setCcRecipients:[NSArray arrayWithObjects:@"78788@qq.com"]];//设置bcc[mc setBccRecipients:[NSArray arrayWithObjects:@"789@qq.com"]];//设置邮件内容//[mc setMessageBody:@"This is a test mail" isHTML:NO];//设置邮件内容，支持HTML[mc setMessageBody:@"Hello, Joe!
What do you know?" isHTML:YES];//为邮件添加附件NSString *path = [[NSBundle mainBundle] pathForResource:@"orange" ofType:@"png"];NSData *data = [NSData dataWithContentsOfFile:path];[mc addAttachmentData:data mimeType:@"image/png" fileName:@"orange"];[self presentModalViewController:mc animated:YES];[mc release];#pragma mark -#pragma mark Delegate Method-(void)mailComposeController:(MFMailComposeViewController *)controller     didFinishWithResult:(MFMailComposeResult)result    error:(NSError *)error{    switch(result)    {        case MFMailComposeResultCancelled:            NSLog(@"Mail send canceled...");            break;        case MFMailComposeResultSaved:            NSLog(@"Mail saved...");            break;        case MFMailComposeResultSend:            NSLog(@"Mail send...");            break;        case MFMailComposeResultFailed:                NSLog(@"Mail send errored:%@...",[error localizedDescription]);            break;        default:            break;    }    [self dismissModalViewControllerAnimated:YES];}