React Native

Open an IMAP Mailbox Read-Only

Demonstrates the Chilkat Imap.ExamineMailbox method, which opens a mailbox as read-only. Use it instead of SelectMailbox when the application must not change message state, such as the \Seen flag. This example examines the Inbox.

Background: Reading a message can have a side effect: fetching its body normally sets the \Seen flag, marking it as read. ExamineMailbox corresponds to IMAP's EXAMINE command, which opens the mailbox in a read-only mode where no such changes are made — ideal for scanning, indexing, or backup tools that must leave the user's mailbox exactly as they left it.

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React Native

import { Imap } from '@chilkat/react-native'

async function chilkatExample() {
  // Demonstrates the Imap.ExamineMailbox method, which opens a mailbox as read-only.  Use this
  // instead of SelectMailbox when the application must not change message state (such as the
  // \Seen flag).

  const imap = new Imap();

  imap.ssl = true;
  imap.port = 993;

  try {
    await imap.connectAsync('imap.example.com');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  try {
    await imap.loginAsync('user@example.com', 'myPassword');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Open the Inbox as read-only.
  try {
    await imap.examineMailboxAsync('Inbox');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  console.log('Inbox opened read-only.');

  try {
    await imap.disconnectAsync();
  } catch {
    console.log(imap.lastErrorText);
    return;
  }
}