Dart

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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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // 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.

  final email = CkEmail();
  email.subject = 'Save as EML';
  email.from = 'alice@example.com';
  email.addTo('Bob', 'bob@example.com');
  email.body = 'Hello, this message will be saved as a .eml file.';

  // Save the email to a .eml file.
  try {
    email.saveEml('qa_output/message.eml');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('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.
}