Passwordless login
Read the next magic link and continue the flow without switching to a mailbox UI.
Magic link testing
Extract magic links from real inbound email
Use programmable inboxes to receive passwordless login links, reset links, and verification URLs, then feed them directly into your tests or workers.
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Reset links
Assert password reset delivery and click through the generated URL inside your tests.
Verification URLs
Capture the exact link your app sends and validate the full end-to-end path.
Signed webhooks
Trigger downstream automation as soon as a link-bearing email arrives, with optional AI enrichment adding extra context in the background.
Node SDK example
import { PostMX } from "postmx";
async function main() {
const postmx = new PostMX(process.env.POSTMX_API_KEY!);
const inbox = await postmx.createTemporaryInbox({ label: "magic-link-test" });
// 2. Pass the generated address to your app
await triggerLogin(inbox.email_address);
// 3. Wait for the email and grab the first link
const email = await postmx.waitForMessage(inbox.id);
// 4. Verify
expect(email.links[0]?.url).toBeTruthy();
}
main().catch(console.error);Start building today
Read magic links through a simple API
Receive real emails, extract the link, and keep the rest of your workflow programmable.