React Native Requires Chilkat v11.0.0+

Forward an Email using CreateForward

See more Email Object Examples

Reads an email from an IMAP server, creates a forward version of the email using the CreateForward method, and sends the email to another recipient. React Native

import { Email, Imap, MailMan, StringBuilder } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // Read the 1st (most recent) email in an Inbox.
  const imap = new Imap();

  // Connect to an IMAP server.
  imap.ssl = true;
  imap.port = 993;
  try {
    await imap.connectAsync('imap.example.com');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Login
  try {
    await imap.loginAsync('myLogin', 'myPassword');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Select an IMAP mailbox
  try {
    await imap.selectMailboxAsync('Inbox');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  const numEmails = imap.numMessages;

  // Fetch the email at the last sequence number.
  // (We are assuming the Inbox has at least 1 email)

  const email = new Email();
  try {
    await imap.fetchEmailAsync(false, numEmails, false, email);
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Disconnect from the IMAP server.
  await imap.disconnectAsync();

  console.log(email.subject);

  const eForward = new Email();
  try {
    email.toForward(eForward);
  } catch {
    console.log(email.lastErrorText);
    return;
  }

  // The eForward email has no To or CC recipients yet.
  // Add one or more..
  eForward.addTo('Joe', 'joe@example.com');

  // We also need to specify the From name/address.
  eForward.fromAddress = 'matt@someMailServer.com';
  eForward.fromName = 'Matt';

  // If we wish to add text at the start of the email body:
  const sbHtmlBody = new StringBuilder();
  if (eForward.hasHtmlBody()) {
    sbHtmlBody.append(eForward.getHtmlBody());
    sbHtmlBody.prepend('<p>Hello, this is an email I\'m forwarding to you...</p>');
    eForward.setHtmlBody(sbHtmlBody.getAsString());
  }

  const sbPtBody = new StringBuilder();
  if (eForward.hasPlainTextBody()) {
    sbPtBody.append(eForward.getPlainTextBody());
    sbPtBody.prepend('Hello, this is an email I\'m forwarding to you...\r\n\r\n');
    eForward.setTextBody(sbPtBody.getAsString(), 'text/plain');
  }

  // We could save the .eml, then double-click on it to view in our mail program, such as Outlook or Thunderbird..
  eForward.saveEml('qa_output/forward.eml');

  // We could send (forward) the email..
  const mailman = new MailMan();

  mailman.smtpHost = 'smtp.example.com';
  mailman.smtpUsername = 'myLogin';
  mailman.smtpPassword = 'myPassword';
  mailman.smtpPort = 587;
  mailman.startTLS = true;

  try {
    await mailman.sendEmailAsync(eForward);
  } catch {
    console.log(mailman.lastErrorText);
    return;
  }

  try {
    await mailman.closeSmtpConnectionAsync();
  } catch {
    console.log('Connection to SMTP server not closed cleanly.');
  }

  console.log('Mail Sent!');
}