CC and BCC

const result = await client.sendEmail(
  "customer@example.com",
  "Invoice sent",
  {
    text: "Your invoice has been sent to your billing contact.",
    cc: "billing@example.com"
  }
);

const result = await client.sendEmail(
  "user@example.com",
  "Welcome to the platform",
  {
    html: "<h1>Welcome</h1><p>Your account is ready.</p>",
    bcc: ["compliance@example.com", "onboarding-log@example.com"]
  }
);

const result = await client.sendEmail(
  ["alice@example.com", "bob@example.com"],
  "Project kickoff",
  {
    text: "The project kickoff meeting is scheduled for Monday.",
    cc: "manager@example.com",
    bcc: "archive@example.com"
  }
);

import { readFile } from "node:fs/promises";

const pdf = await readFile("./agenda.pdf");

const result = await client.sendEmail(
  ["alice@example.com", "bob@example.com"],
  "Meeting agenda",
  {
    text: "Please review the attached agenda.",
    cc: ["manager@example.com", "hr@example.com"],
    bcc: "admin@example.com",
    attachments: [
      { filename: "agenda.pdf", content: pdf, contentType: "application/pdf" }
    ]
  }
);