Mailtrap Alternative
Mailisk is a fast email and SMS testing platform focused on simplicity and privacy. Get unique subdomains and gain access to unlimited email addresses.
- Private namespaces
- Email & SMS in one API
- Typed Node & Cypress SDKs
Why teams switch from Mailtrap
Namespaces over inbox IDs
Instead of juggling Mailtrap inbox IDs, Mailisk grants dedicated subdomains so every run can mint unlimited recipient addresses without cleanup scripts.
Email & SMS coverage
Mailtrap only validates email. Mailisk captures inbox and SMS traffic through the same API so OTP flows stay under one bill.
Automatic waiting & retries
Mailisk search endpoints wait by default, eliminating the custom polling loops Mailtrap users maintain in CI.
Modern dashboard
Share message previews securely, inspect attachments, and replay payloads without forwarding them outside the platform.
Typed SDKs
Our official MailiskClient ships TypeScript types, helpers, and examples tailored for Cypress, Playwright, and Jest suites.
Predictable pricing
Unlimited users, API keys, and inbox aliases keep costs flat as you scale environments and contributors.
Switch to simpler tests and SDKs
Line up the Mailtrap endpoints you poll today with simplified Mailisk calls.
Mailtrap inbox search → mailisk.searchInbox
Replace Mailtrap's inbox logic with a simple searchInbox call.
Mailtrap
// Mailtrap’s Node SDK does not expose helpers for reading Email Sandbox messages,
// so this example uses the REST API directly and does not include polling.
const token = process.env.MAILTRAP_API_KEY!;
const accountId = Number(process.env.MAILTRAP_ACCOUNT_ID!);
const inboxId = Number(process.env.MAILTRAP_INBOX_ID!);
const testEmail = "signup+ci@mailtrap.io";
const listRes = await fetch(
`https://mailtrap.io/api/accounts/${accountId}/inboxes/${inboxId}/messages?page=1&search=${encodeURIComponent(
testEmail
)}`,
{ headers: { Authorization: `Bearer ${token}` } }
);
if (!listRes.ok) throw new Error("Failed to list messages");
const messages = await listRes.json();
const message = messages.find((m: any) =>
(m.subject ?? "").includes("Verify your account")
);
if (!message) throw new Error("Email never arrived");
const bodyRes = await fetch(
`https://mailtrap.io/api/accounts/${accountId}/inboxes/${inboxId}/messages/${message.id}/body.txt`,
{ headers: { Authorization: `Bearer ${token}` } }
);
if (!bodyRes.ok) throw new Error("Failed to fetch body");
const body = await bodyRes.text();
const verificationLink = body.match(/https?:\/\/\S+/)?.[0];Mailisk
Waits automatically
import { MailiskClient } from "mailisk";
const mailisk = new MailiskClient({ apiKey: process.env.MAILISK_API_KEY! });
const namespace = "signup-tests";
const testEmail = `user+${Date.now()}@${namespace}.mailisk.net`;
await triggerSignup(testEmail);
const { data } = await mailisk.searchInbox(namespace, {
to_addr_prefix: testEmail,
subject_includes: "Verify your account",
});
if (!data?.length) throw new Error("Email never arrived");
const body = data[0].text ?? "";
const verificationLink = body.match(/https?:\/\/\S+/)?.[0];Mailtrap-level coverage plus modern workflows
Full payload visibility
Inspect headers, HTML, text, attachments, and raw SMTP without downloading artifacts or leaving the dashboard.
SMS-ready coverage
Mailisk ingests inbound SMS alongside email traffic, so OTP and MFA assertions use the same namespace filters and API responses.
GDPR-friendly hosting
All Mailisk traffic stays inside EU data centers, helping privacy teams sign off faster than legacy Mailtrap regions.
Shareable previews
Generate secure links so designers and PMs can view renders without needing a Mailtrap seat or credentials.
Ready to leave Mailtrap?