Objective-C

Save an Email to a .eml File

Demonstrates the Chilkat Email.SaveEml method, which converts the email object to EML and saves it to a file. An EML file contains the complete RFC822/MIME message — headers, bodies, related items, and attachments. This example builds a message and saves it.

Background: Saving as .eml writes the message in the universal MIME format that virtually every mail client can open, making it ideal for archiving, sharing, or handing a message to another program. It is the counterpart to LoadEml. A saved .eml also retains Chilkat's CKX- metadata headers (a way to store your own metadata with the email; they are always stripped before an email is sent), so .eml is the recommended way to persist a message even within Chilkat-based software. A separate Chilkat XML format (SaveXml) exists as an alternative, but offers no metadata advantage over .eml.

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Objective-C

#import <CkoEmail.h>

BOOL success = NO;

//  Demonstrates the SaveEml method, which converts the email object to EML and saves it to
//  a file.  An EML file contains the complete RFC822/MIME message, including headers,
//  bodies, related items, and attachments.

CkoEmail *email = [[CkoEmail alloc] init];
email.Subject = @"Save as EML";
email.From = @"alice@example.com";
[email AddTo: @"Bob" emailAddress: @"bob@example.com"];
email.Body = @"Hello, this message will be saved as a .eml file.";

//  Save the email to a .eml file.
success = [email SaveEml: @"qa_output/message.eml"];
if (success == NO) {
    NSLog(@"%@",email.LastErrorText);
    return true;
}

NSLog(@"%@",@"Saved to message.eml.");

//  Note: The path "qa_output/..." is a relative local filesystem path,
//  relative to the current working directory of the running application.