The iOS SDK has made it really easy to send email using the built-in APIs. With a few line of codes, you can launch the same email interface as the stock Mail app that lets you compose an email. You can pop up mail composer form , write message and can send plain mail or file attached mail using MFMailComposeViewController class. For more info : Sending e-mail from your iOS App
But, in this section what i am going to explain is about sending emails without showing the mail composer sheet ie. sending emails in background. For this feature, we can not use iOS native MFMailComposer class because it does not allow us to send emails in background instead it pop ups the mail composer view from where user have to tap "send" button , so for this section i am going to use SKPSMTPMessage Library to send emails in background, however email account has to be hardcoded on this method.
Limitations :
sender/receiver email address has to be hardcoded or you have to grab it using some pop up form in your app where user inputs sender/receiver email address. In addition, sender account credentials has to be also hardcoded since there is no way we can grab it from device settings.
Method :
- Import CFNetwork.framework to your project.
- Include #import "SKPSMTPMessage.h"
#import "NSData+Base64Additions.h" // for Base64 encoding
- Include to your ViewController
- Download SKPSMTPMessage library from
https://github.com/jetseven/skpsmtpmessage
Drag and Drop "SMTPLibrary" folder you have downloaded to your project.
Before proceeding, let you know that i am using sender/receiver email address and sender password hardcoded in the code for this example.But, you may grab this credentials from user, allowing them to input in some sort of forms(using UIViews).
-(void) sendEmailInBackground {
NSLog(@"Start Sending");
SKPSMTPMessage *emailMessage = [[SKPSMTPMessage alloc] init];
emailMessage.fromEmail = @"[email protected]"; //sender email address
emailMessage.toEmail = @"[email protected]"; //receiver email address
emailMessage.relayHost = @"smtp.gmail.com";
//emailMessage.ccEmail =@"your cc address";
//emailMessage.bccEmail =@"your bcc address";
emailMessage.requiresAuth = YES;
emailMessage.login = @"[email protected]"; //sender email address
emailMessage.pass = @"Passwxxxx"; //sender email password
emailMessage.subject =@"@"email subject header message";
emailMessage.wantsSecure = YES;
emailMessage.delegate = self; // you must include <SKPSMTPMessageDelegate> to your class
NSString *messageBody = @"your email body message";
//for example : NSString *messageBody = [NSString stringWithFormat:@"Tour Name: %@\nName: %@\nEmail: %@\nContact No: %@\nAddress: %@\nNote: %@",selectedTour,nameField.text,emailField.text,foneField.text,addField.text,txtView.text];
// Now creating plain text email message
NSDictionary *plainMsg = [NSDictionary dictionaryWithObjectsAndKeys:@"text/plain",kSKPSMTPPartContentTypeKey, messageBody,kSKPSMTPPartMessageKey,@"8bit",kSKPSMTPPartContentTransferEncodingKey,nil];
emailMessage.parts = [NSArray arrayWithObjects:plainMsg,nil];
//in addition : Logic for attaching file with email message.
/*
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"filename" ofType:@"JPG"];
NSData *fileData = [NSData dataWithContentsOfFile:filePath];
NSDictionary *fileMsg = [NSDictionary dictionaryWithObjectsAndKeys:@"text/directory;\r\n\tx- unix-mode=0644;\r\n\tname=\"filename.JPG\"",kSKPSMTPPartContentTypeKey,@"attachment;\r\n\tfilename=\"filename.JPG\"",kSKPSMTPPartContentDispositionKey,[fileData encodeBase64ForData],kSKPSMTPPartMessageKey,@"base64",kSKPSMTPPartContentTransferEncodingKey,nil];
emailMessage.parts = [NSArray arrayWithObjects:plainMsg,fileMsg,nil]; //including plain msg and attached file msg
*/
[emailMessage send];
// sending email- will take little time to send so its better to use indicator with message showing sending...
}
Now, handling delegate methods :
// On success
-(void)messageSent:(SKPSMTPMessage *)message{
NSLog(@"delegate - message sent");
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Message sent." message:nil delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil];
[alert show];
}
// On Failure
-(void)messageFailed:(SKPSMTPMessage *)message error:(NSError *)error{
// open an alert with just an OK button
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error!" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil];
[alert show];
NSLog(@"delegate - error(%d): %@", [error code], [error localizedDescription]);
}
Ok, thats all from the coding side. hope this tutorial may find useful for you guyz
