Connect with IMAP

import { ImapFlow } from "imapflow";

const login = process.env.INBOUND_MAILBOX_LOGIN;
const password = process.env.INBOUND_MAILBOX_PASSWORD;

if (!login || !password) {
  throw new Error("Set INBOUND_MAILBOX_LOGIN and INBOUND_MAILBOX_PASSWORD");
}

const client = new ImapFlow({
  host: "imap.inboundemail.com",
  port: 993,
  secure: true,
  auth: { user: login, pass: password },
});

await client.connect();

try {
  const lock = await client.getMailboxLock("INBOX", { readOnly: true });

  try {
    const totalMessages = client.mailbox ? client.mailbox.exists : 0;

    if (totalMessages === 0) {
      console.log("INBOX is empty");
    } else {
      const firstMessage = Math.max(1, totalMessages - 9);
      const range = `${firstMessage}:${totalMessages}`;

      for await (const message of client.fetch(range, { envelope: true })) {
        console.log({
          uid: message.uid,
          from: message.envelope?.from,
          subject: message.envelope?.subject,
        });
      }
    }
  } finally {
    lock.release();
  }
} finally {
  await client.logout();
}

import imaplib
import os
import ssl
from email import policy
from email.parser import BytesParser

login = os.environ["INBOUND_MAILBOX_LOGIN"]
password = os.environ["INBOUND_MAILBOX_PASSWORD"]
context = ssl.create_default_context()

with imaplib.IMAP4_SSL(
    "imap.inboundemail.com", 993, ssl_context=context
) as client:
    client.login(login, password)

    status, _ = client.select("INBOX", readonly=True)
    if status != "OK":
        raise RuntimeError("Could not open INBOX")

    status, message_ids = client.search(None, "ALL")
    if status != "OK":
        raise RuntimeError("Could not search INBOX")

    for message_id in message_ids[0].split()[-10:]:
        status, parts = client.fetch(
            message_id,
            "(BODY.PEEK[HEADER.FIELDS (FROM SUBJECT DATE)])",
        )
        if status != "OK":
            continue

        for part in parts:
            if isinstance(part, tuple) and isinstance(part[1], bytes):
                headers = BytesParser(policy=policy.default).parsebytes(part[1])
                print({
                    "from": str(headers.get("From", "")),
                    "subject": str(headers.get("Subject", "")),
                    "date": str(headers.get("Date", "")),
                })