Mailtrap Pricing Plans for Email API, Sandbox and Marketing

Mailtrap's sending product, Email API/SMTP, costs $15 a month for 10,000 emails, $20 for 50,000 and $30 for 100,000 on the Basic plan. Business runs from $85 for 100,000 to $450 for 750,000, and Enterprise is $750 for 1.5 million and $1,250 for 2.5 million. A free plan sends 4,000 emails a month, capped at 150 a day.

That is only one of three Mailtrap price lists. Email Sandbox, the testing inbox most developers know Mailtrap for, is billed separately from $17 a month, and Email Marketing, the campaign builder, is billed by contacts from $15 a month. Each product has its own plan and its own invoice line, so a team using two of them pays two subscriptions.

Prices come from Mailtrap's published pricing file and its interactive pricing page, read on October 9, 2026. The cost per 1,000 emails, the upgrade thresholds and the bundle totals below are our arithmetic on those figures.

Email API/SMTP is priced in volume steps, and the price per email falls as you climb: $1.50 per 1,000 at the 10,000 step, $0.30 per 1,000 at Basic's 100,000 step and $0.50 per 1,000 on Enterprise. The yearly toggle on the pricing page leaves every Email API price unchanged, so there is no discount for paying a year ahead on the sending product.

Look at the two 100,000 rows. Basic and Business send the same number of emails, and Business costs $55 a month more. That $55 buys the dedicated IP with automatic IP warm-up, SSO, sub-accounts, 15 days of logs instead of 5, 100 users and 100 domains instead of 3 and 5, and 24/7 live chat. If you need none of those, Basic at $30 undercuts SendGrid, Resend, MailerSend, Mailgun and Postmark at 100,000 emails. Only Amazon SES is cheaper in the roundup further down.

Extra emails cost $1.00 per 1,000 on Basic, $0.88 on Business and $0.55 on Enterprise, and the free plan cannot go over at all. Mailtrap also says overages are capped and recommends upgrading when you send well above your limit, so overage is a buffer for a busy month, not a way to run a larger plan at a lower step.

Within that buffer, the step you should buy is a simple break-even. These thresholds are our arithmetic: below each one, the smaller step plus overage costs less; above it, the next step is cheaper.

The first row surprises most buyers. A team sending 16,000 emails a month should not sit on the $15 plan and pay overage; the $20 step covers 50,000 and is already cheaper. The free plan has the opposite trap: 4,000 a month sounds generous, but the 150-a-day cap means a single launch-day burst of password resets or receipts stops at 150.

Free includes the API and SMTP relay, webhooks, templates, the bulk stream, open tracking and SPF, DKIM and DMARC setup, with 3 days of logs, 1 user and 1 domain. Basic adds click tracking, branded HTTPS links, IP allowlisting, 3 users, 5 domains and 5 days of logs.

Business adds the dedicated IP with automatic warm-up, Mailtrap's SaaS safeguard, SSO, sub-accounts, 15-day logs, 24/7 live chat, priority support, deliverability help and migration assistance, plus 100 users and 100 domains and a 30 MB message limit. Enterprise adds audit logs, content-free logging, 30-day logs, custom contracts, enterprise billing and unlimited users and domains.

Every sending plan, the free one included, carries suppression management, bounce categorization, feedback-loop data, throttling, deliverability analytics, 2FA and Mailtrap's GDPR, ISO 27001 and SOC 2 Type 2 coverage.

Email Sandbox costs $17 a month for 500 test emails on Basic, $42 for 5,000 on Team, $123 for 50,000 on Business and $498 for unlimited on Enterprise. Paying yearly drops those to $14, $34, $99 and $399 a month, which is $168, $408, $1,188 and $4,788 a year.

The yearly saving is not flat. By our arithmetic it is 17.6% on Basic, 19.0% on Team, 19.5% on Business and 19.9% on Enterprise, which is where the "up to 20%" on the page comes from. A free sandbox catches 50 test emails a month in 1 sandbox for 1 user.

Sandbox mail is never delivered, so it costs nothing on the sending side. Teams that already pay for a sending plan still buy Sandbox separately if they want QA to see staging email.

Email Marketing is billed by contacts. Essential is $15 a month for 10,000 contacts and 30,000 emails, or $29 for 25,000 contacts and 75,000 emails. Pro runs from $59 for 25,000 contacts and 125,000 emails to $499 for 250,000 contacts and 1.25 million emails. Yearly billing lowers those to $12, $23, $47 and $399 a month.

At 25,000 contacts, Pro costs $30 a month more than Essential for 50,000 more emails, the dedicated IP, SSO, sub-accounts and 24/7 chat. A list you mail three times a month fits Essential; one you mail five times needs Pro. The free marketing plan holds 500 contacts and 1,500 emails with no scheduling and no automations.

Mailtrap takes 20% off the cheaper plan when you use two products and 20% off the two cheaper plans when you use all three, but only through sales. It is not applied at self-serve checkout.

A common SaaS setup pairs Basic sending at 100,000 emails ($30) with Team Sandbox ($42 monthly or $34 yearly). Here is what that costs under each option, by our arithmetic.

The discount lands on the cheaper plan, so it is worth asking for only when the second product is a meaningful line on the bill.

No. Mailtrap's acceptable use policy says outreach without the respective consent from recipients is prohibited, and it bans sending to purchased, rented, third-party, co-registration, publicly available data or partner lists of any kind. A cold prospect list fails both rules.

The policy also requires you to hold an up to date record of consent before you send commercial email. That is the standard position for shared sending infrastructure: SendGrid, Mailgun, Postmark, MailerSend and SMTP2GO take the same line, which we compare provider by provider in the best SMTP server for cold email guide. A relay protects one IP reputation for every customer, so it closes accounts that draw complaints.

Cold outreach belongs on mailboxes you own. A Google Workspace or Microsoft 365 inbox on your own domain sends at a human pace and builds a reputation that is yours alone. ColdMailer is built for that setup: you connect your inbox, import prospects, and it writes one personalized email per person, runs follow-ups in the same thread and caps each inbox's daily sends. The SMTP email sender page shows how the connection works, and if you are weighing relays for your product mail, our Postmark vs Mailgun pricing comparison runs the same arithmetic on two of Mailtrap's rivals.