Dart

Get an Email's MIME into a StringBuilder

Demonstrates the Chilkat Email.GetMimeSb method, which returns the email as MIME text (header, body or bodies, related items, and all attachments) by appending it to a StringBuilder object. This example builds a message and appends its MIME to a StringBuilder.

Background: This is a StringBuilder-based alternative to GetMime, which returns a plain string. Writing into a StringBuilder is more efficient when the MIME is large or when you intend to further manipulate it — searching, replacing, or accumulating additional text — without creating many intermediate string copies.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the GetMimeSb method, which returns the email as MIME text (headers, bodies,
  // related items, and attachments), appending it to a StringBuilder object.

  final email = CkEmail();
  email.subject = 'GetMimeSb example';
  email.from = 'alice@example.com';
  email.addTo('Bob', 'bob@example.com');
  email.body = 'Hello!';

  // Append the complete MIME to a StringBuilder.
  final sbMime = CkStringBuilder();
  try {
    email.getMimeSb(sbMime);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(sbMime.getAsString());
}