【问题标题】：iPhone: Send E-Mail with Custom Content-TypeiPhone：使用自定义内容类型发送电子邮件
【发布时间】：2023-03-10 13:49:01
【问题描述】：

我尝试从具有自定义 Content-Type 的应用程序发送电子邮件。

任何想法如何做到这一点？

所以我喜欢改变

“内容类型”： "multipart/mixed;boundary=Apple-Mail-1--209662383" --> "application/pkcs7-mime;name=smime.p7m;smime-type=envelope-data"

和 “内容传输编码”：

"7bit" --> "base64"

【问题讨论】：

有什么原因不能将其编码为附件吗？
是的，我不想发送加密的 smime 附件，然后 "Content-Type" 必须是 "application/pkcs7-mime; name=smime.p7m; smime-type=envelope-data"并且“Content-Transfer-Encoding”必须是“base64”

标签： iphone email iphone-sdk-3.0 ios ios4

【解决方案1】：

(void)launchInAppMail {

MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];

controller.mailComposeDelegate = self;

[controller setSubject:@"In app email..."];

NSMutableString *messageString = [[NSMutableString alloc] init];

if (!(mNameField.text == nil || [mNameField.text isEqualToString:@""])) {
```
[messageString appendFormat:@"Name: %@ \n",mNameField.text];
```
} if (!(mPhoneNumberField.text == nil || [mPhoneNumberField.text isEqualToString:@""])) { [messageString appendFormat:@"电话号码：%@ \n",mPhoneNumberField.text];

}

如果 (!(mEmailField.text == nil || [mEmailField.text isEqualToString:@""])) { [messageString appendFormat:@"Email ID: %@ \n",mEmailField.text]; }

if (!(mTextView.text == nil || [mTextView.text isEqualToString:@""])) {
```
[messageString appendFormat:@"Desription: %@ \n",mTextView.text];
```
}

if (!(mProblemNameButton.titleLabel.text == nil || [mProblemNameButton.titleLabel.text isEqualToString:@""])) {
```
[messageString appendFormat:@"Problem Name:  %@ \n",mProblemNameButton.titleLabel.text];
```
}

[messageString appendFormat:@"Address: %@ \n", self.mAddress];

if (self.coordinateLoc)
```
[messageString appendFormat:@"Longitude: %f, Latitude: %f \n", self.coordinateLoc.coordinate.longitude, self.coordinateLoc.coordinate.latitude];
```
[controller setToRecipients:[NSArray arrayWithObject:@"service@emergencylocksmithleads.com"]];

[控制器 setMessageBody:messageString isHTML:NO];

[messageString 发布];

if (mImageView.image != nil) {
```
NSData *imageData = UIImageJPEGRepresentation(mImageView.image, 1);


[controller addAttachmentData:imageData mimeType:@"image/jpg" fileName:@"example.jpg"];
```
}

[self presentModalViewController:controller animated:YES];

[控制器释放]; }

pragma mark --------------------------------------------

pragma mark MFMailComposeViewController 委托方法

(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result 错误:(NSError )error { 开关（结果）{
案例 MFMailComposeResultCancelled:
NSLog(@"邮件发送取消。");
/ 在此处执行取消事件的代码... /
休息;
案例 MFMailComposeResultSaved:
NSLog(@"邮件已保存。");
/ 在此处执行电子邮件保存事件的代码... */
休息;
案例 MFMailComposeResultSent: { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Mail Sent" message:nil delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; alert.tag = 1; alert.delegate = 自我； [警报显示]； [警报发布]；休息;
} 案例 MFMailComposeResultFailed: { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"邮件发送失败" message:nil delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; alert.tag = 2; alert.delegate = 自我； [警报显示]； [警报发布]；休息;
} 默认值：
休息;
} [控制器dismissModalViewControllerAnimated:YES]; }

【讨论】：

这是发送邮件的代码，而不是更改邮件的“Content-Type”...

【解决方案2】：

我使用http://code.google.com/p/skpsmtpmessage/ 使用 iOS 发送自定义邮件。

【讨论】：