Mail

import { brandedReceipts, resend } from "@weber-development/inverse-mail";

const mail = brandedReceipts({
  brand: {
    company: { name: "Acme GmbH", address: "Musterweg 1, 10115 Berlin", email: "hallo@acme.de" },
    logoUrl: "https://acme.de/logo.png",
    color: "#0f766e",
    links: [{ label: "Impressum", url: "https://acme.de/impressum" }],
  },
  transport: resend({ apiKey: process.env.RESEND_API_KEY!, from: "Acme <service@acme.de>" }),
  team: { to: "service@acme.de" },
  archiveBcc: "archiv@acme.de",
});

export const POST = createInverseHandler({ company, onDeclaration: save, sendReceipt: mail.sendReceipt });

Branded receipt

The receipt keeps everything the law requires (content, date and time of receipt, end date) and adds your logo, colour and footer links. Texts in German, English, French and Italian, with the same overrides as the free package.

Team notification

With team, your team gets a separate e-mail for every declaration, with what to do next:

• Withdrawal: refund due at the latest 14 days after receipt (§ 357 BGB), with the date.
• Cancellation: the end date, or a reminder that the consumer still needs one.

Transports

resend, postmark, sendgrid, brevo and mailgun use the providers' HTTP APIs with fetch, no SDK needed. nodemailer(transporter) wraps an existing nodemailer transport for SMTP. Any object with send({ from?, to, bcc?, replyTo?, subject, text, html }) works too.