Mailtrap pricing and review

Reachkit makes a competing cold email tool. Every Mailtrap price here was checked on October 31, 2026 against Mailtrap’s own pricing page, help center and terms.

Mailtrap pricing starts at $15 a month for 10,000 emails on the Email API/SMTP Basic plan, and the Sandbox and Marketing products are bought separately, each with its own free plan. The numbers below are Mailtrap’s monthly USD list prices from its pricing page, read October 31, 2026.

Mailtrap’s pages disagree on where custom pricing starts: the pricing page says 2.5M, the help center’s plans page says above 5M. Overage is capped at a level Mailtrap doesn’t publish, and yearly billing for sending goes through sales.

What Business adds: 100 users and domains (Basic has 3 and 5), a dedicated IP that Mailtrap warms automatically, 15 days of logs instead of 5, and 24/7 live chat.

Email Sandbox: Basic $17 a month for 500 test emails, Team $42 for 5,000, Business $123 for 50,000 and Enterprise $498, or $14, $34, $99 and $399 a month billed yearly. Free catches 50 a month.

Email Marketing: free for 500 contacts, Essential from $15 a month for 10,000 contacts, Pro from $59 (25,000) to $499 (250,000). Yearly billing saves up to 20%.

Typical setups (my math): an app sending 50,000 emails that also tests in staging pays $20 plus $42 for Sandbox Team, $62 a month. A 300,000-a-month sender wanting a dedicated IP pays $300 on Business 500k, or $244 on 250k plus overage if the unpublished cap allows.

Mailtrap began inside Railsware, a product studio, as an internal fix after a 2011 test run accidentally sent 200,000 test emails to real customers. Today it’s sold by Railsware Products Studio LLC of Pasadena, California.

Email API/SMTP sends through a REST API or SMTP relay, with official SDKs in eight languages. Transactional and bulk mail go out on separate streams, from shared IPs by default, and you verify your sending domain yourself. Inbound email, generally available since June 2026, is on every plan and counts against the same monthly quota.

Email Sandbox is a fake inbox for staging. Point your test environment at it and Mailtrap holds every email, showing the HTML, headers, a spam score and how the markup fares across email clients. Mailtrap Local (July 2026) is a free, open-source version for your own machine.

Email Marketing covers campaigns, lists, segments and automations.

AI: no AI writing. Mailtrap’s official MCP server lets an assistant like Claude or Cursor send a test email, read sandbox messages or edit templates while you code.

Strengths

• The sandbox. G2 reviewers single out the sandbox for catching emails from development and staging (G2).
• Cheap at volume on Basic. 100,000 emails cost $30 a month, about $0.30 per 1,000.
• Quick to set up. G2’s compare pages score Mailtrap 9.4 for ease of setup and 8.9 for quality of support.
• Fast developer releases. A Go SDK, a Terraform provider, inbound email and domain reputation monitoring all shipped between June and September 2026, per the changelog.
• Targeted suspensions. A suspension can hit one domain or one stream, and queued mail goes out once it’s lifted (docs).

Drawbacks

• No cold email. The deliverability guide says “Don’t send cold outreach campaigns”, and the acceptable use policy bans “purchased, rented, third-party, co-reg, publicly available data, or partner lists of any kind.”
• Opt-in checks can stop sending. Most one-star Trustpilot reviews describe blocked sending or suspended accounts, and Mailtrap’s replies point to its opt-in checks. Mailtrap’s docs call a ban permanent: emails are rejected and can’t be recovered.
• Three bills. Sending, testing and marketing are separate plans. Buying two can take 20% off the cheaper one, but only by asking.
• Short logs on low plans: 3 days on Free, 5 on Basic.

Mailtrap rates 4.8 on both G2 (76 reviews) and Capterra (36), per search results in October 2026. Trustpilot, read live, shows 2.8 from 12 reviews, half of them one-star.

Praise centers on the sandbox, the price and friendly support. A May 2026 reviewer calls Mailtrap “one of the first to offer email sandboxes” and says “it works great for testing!” The one-star reviews mostly describe blocked sending or suspensions, such as an “automatic ban without having any options to change any settings” (May 2026). In its replies, Mailtrap says accounts may be suspended where “recipient consent cannot be verified”.

Mailtrap fits developer and product teams that want staging email caught and live email sent by one vendor, especially at 10,000 to 100,000 app emails a month, where Basic costs $15 to $30.

Look elsewhere to reach people who never opted in. Prospecting belongs on separate lookalike domains and real mailboxes, away from the domain your password resets come from (how that setup works).

• Postmark: ActiveCampaign’s sending API, $15 for 10,000 emails, with a free tier of only 100 a month. See the Postmark profile.
• Mailgun: also $15 for 10,000 emails on Basic; its free plan allows 100 a day. See the Mailgun profile.
• SendGrid: Twilio’s platform, $19.95 for 50,000 emails, after a 60-day trial instead of a free plan. See Mailgun vs SendGrid.
• MailerSend: the lowest entry price here, $7 for 5,000 emails. See the MailerSend profile.
• Email on Acid: client previews for checking email design, moving into Mailgun Inspect, from $99 a month. See the Email on Acid profile.
• Reachkit (our product): it won’t catch staging email or send receipts. If you opened a Mailtrap account to email prospects, Reachkit drafts the sequence from one sentence, finds verified leads (1,000 credits a month on the $39 Growth plan) and registers separate domains ($15 a year) with Google or Microsoft inboxes ($5 a month each) that start warmup on their own.