Mailchimp Transactional

Send through Mailchimp Transactional with explicit account behavior and recipient outcomes.

Import mailchimpEmailLayer from @corven/email-sdk/mailchimp to provide the common Email service for this account.

Configure the account

import { Layer } from "effect";
import type { Redacted } from "effect";
import { mailchimpEmailLayer } from "@corven/email-sdk/mailchimp";
import { emailHttpLayer } from "./sending.js";

export const configuredMailchimpAccount = (apiKey: Redacted.Redacted) =>
  mailchimpEmailLayer({
    apiKey,
    automaticFooter: "AccountDisabled",
    keyMode: "Live",
    messageRules: "AccountDisabled",
  }).pipe(Layer.provide(emailHttpLayer));

The example reuses the explicit HTTP Layer. Acquire credentials in trusted host code, then provide this account Layer to your sending program.

Message behavior

• Use a live key and attest that account message rules and automatic footer insertion are disabled.
• Per-recipient acknowledgments retain accepted and rejected evidence. Queue status does not prove delivery.
• Tags are disabled by default. The optional tagStatistics configuration authorizes only a declared set of known account tag labels.
• Explicit MIME types, inline attachments, metadata and scheduling are supported subject to provider validation.

Idempotency

The adapter declares no send idempotency support. A recipient message ID or queued result does not authorize another submission.

Read field support before switching accounts, and receipts and retries before adding recovery behavior. Configuration and local validation do not authenticate the account or prove delivery.