What Mailjet Costs, in Short
As of October 11, 2026, Mailjet’s Free plan costs $0 and allows 6,000 emails a month, capped at 200 a day and 1,000 contacts. Paid plans bill by monthly email volume: Starter is $9 for 8,000 emails, Essential starts at $19 for 15,000, and Premium starts at $29 for 15,000. Premium scales to 500,000 emails a month at $499. Anything beyond that is a custom quote. Prices below are in USD, exclude VAT, and come from Mailjet’s pricing page and its subscription help article, both read on that date. Mailjet raised self-service prices on September 9, 2026, so older reviews will show different numbers.
How Mailjet’s Pricing Model Works
Mailjet’s billing unit is the email sent in a month. The plan you pick sets a monthly email allowance, and the slider on the pricing page offers 8,000, 15,000, 50,000, 100,000, 250,000, 500,000 or “More.” Contacts matter only on the lower tiers: Free allows up to 1,000 and Starter up to 2,000, while Essential and Premium list unlimited contacts.
The rules that decide your real bill:
- Free plan cap. The help center says “Our Free Plan allows you to send 6,000 emails a month with a limit of 200 emails per day.” Emails over the daily cap are queued for the next day, and Mailjet queues them for only 3 days before removing them permanently.
- Free plan contact limit. Since October 6, 2025, a free account with more than 1,000 contacts gets a send hold, which blocks campaigns until you remove contacts or upgrade. Excluded contacts count toward the limit.
- Paid overage. The pricing page says “If you run out of email credit, you can still send more emails, but these will be billed.” The help center adds that “Extra usage cannot be deactivated,” and overage is charged when the plan renews.
- No rollover. “Email credits don’t roll over from one month to another,” so unused volume expires at the end of each billing cycle.
- Blocked emails still count. Mailjet’s help center says blocked and pre-blocked emails are deducted from your monthly credits and billed, so a dirty list costs money even when nothing is delivered.
- Annual billing. Paying annually takes 10% off and is non-refundable. The volume stays fixed per month, and any overage is still billed monthly to your card.
The simplest way to remember it: Mailjet bills by emails per month, and a paid plan never stops you from sending. It charges you for the excess instead.
Plan Tiers and Limits
| Plan | Monthly price | Annual (per month) | Emails per month | Daily limit | Contacts | Gated features |
|---|---|---|---|---|---|---|
| Free | $0 | $0 | 6,000 | 200 | 1,000 | API, SMTP relay, webhooks, drag-and-drop editor, basic statistics, forms. Support for the first month only |
| Starter | $9 | $8.10 | 8,000 | None | 2,000 | Adds Brand Kit, anonymous tracking, online support, 1 subaccount |
| Essential | $19 (15k) to $40 (50k) | $17.10 to $36 | 15,000 or 50,000 | None | Unlimited | Adds segmentation, AI-assisted content, no Mailjet logo, custom unsubscribe page, 500 validations, 500 email previews |
| Premium | $29 (15k) to $499 (500k) | $26.10 to $449.10 | 15,000 to 500,000 | None | Unlimited | Adds automations, A/B testing, dynamic content, landing pages, advanced statistics, multi-user access, up to 20 subaccounts, priority support |
| Custom | Quote only | Not published | Custom | Custom | Custom | Technical account manager, dedicated IP strategy, blocklist monitoring, deliverability reports, activity logs, SLA |
Checked October 11, 2026 against mailjet.com/pricing and Mailjet’s subscription help article. Annual prices are the monthly equivalent after the 10% discount.
Premium is the only tier that scales past 50,000 emails, and its price depends on the volume you select:
| Premium volume | Monthly | Annual (per month) | Overage per 1,000 emails | Extras |
|---|---|---|---|---|
| 15,000 | $29 | $26.10 | $2.58 | 500 validations, 2,000 previews |
| 50,000 | $59 | $53.10 | $1.52 | Phone and chat support, Parse API |
| 100,000 | $112 | $100.80 | $1.39 | 1 dedicated IP on request, 2,000 validations, SSO |
| 250,000 | $265 | $238.50 | $1.25 | Same as 100,000 |
| 500,000 | $499 | $449.10 | $1.20 | Same as 100,000 |
Overage rates for Starter and Essential 15k are $2.58, and Essential 50k is $1.52. Source: Mailjet’s overage help article, updated June 17, 2026. Checked October 11, 2026.
The upgrade trigger is almost never email volume alone. Segmentation and removing the Mailjet logo push you from Starter to Essential, and automations, A/B testing and multiple users push you from Essential to Premium. A team that only needs more volume can stay on Essential up to 50,000 emails.
Marketing vs. Transactional Sending
Mailjet’s pricing page lists “APIs, SMTP Relay, Webhooks” on every plan, including Free, so transactional sending needs no separate product or price list. Mailjet’s help center describes transactional email as messages sent “as a result of a user action, such as signing up, making a purchase, or requesting a password reset,” and marketing email as bulk sends to opted-in subscribers.
What Mailjet does not say, on the pricing page or in the help articles checked for this post, is whether API and SMTP messages draw from the same monthly allowance as campaigns. Every plan lists a single email volume with no separate transactional line, which points to one shared pool, but that is an inference. Confirm it with Mailjet support before you budget a product that sends both kinds. For how other providers split the two, see Best Transactional Email Services Compared.
One API-side control is worth knowing: on paid plans you can set a Daily Send Limit per API key, and the default for non-Custom accounts is “5× your subscription sending limit.”
Add-Ons and Where Costs Escalate
- Dedicated IP. Premium lists “1 Dedicated IP (For 100k+ Plans upon request).” Mailjet generally recommends one for senders above 100,000 emails a month and at least 3,000 a day, and reviews the sending profile first. The price is Not published. See Dedicated IP vs Shared IP for whether you need one.
- Validations and previews. Essential and Premium include 500 validations and, from 100k, 2,000. Usage above the included amount is billed, and Mailjet does not publish the rate.
- Users and subaccounts. Multi-user access starts on Premium. Subaccounts are 1 on Free through Essential, and up to 20 on Premium.
- Support. Phone and chat start at Premium 50k.
- VAT. Prices exclude VAT and are subject to French VAT. EU companies with an intra-Community VAT number can be exempt.
- SMS. Not published on the pricing page, so it is not covered here.
Worked Cost Example: 20,000 Emails a Month Growing to 100,000
Take a SaaS product sending onboarding mail, receipts and a monthly update, with no need for automations or multi-user access. These totals are calculated from the published prices above, not Mailjet quotes.
| Monthly volume | Cheapest published option | Monthly cost |
|---|---|---|
| 20,000 | Essential 15k plus 5,000 overage (5 x $2.58) | $31.90 |
| 50,000 | Essential 50k | $40.00 |
| 75,000 | Essential 50k plus 25,000 overage (25 x $1.52) | $78.00 |
| 100,000 | Premium 100k | $112.00 |
At 20,000 emails, overage on Essential 15k is cheaper than buying Essential 50k ($40). At 75,000, overage on Essential 50k beats the next band, because Essential stops at 50,000 and Premium 100k costs $112. Premium 15k with the same overage would be $41.90 at 20,000, and Premium 50k is $59 at 50,000, so automations and A/B testing add roughly $10 to $19 a month at those volumes.
The conclusion: a team growing from 20,000 to 100,000 emails a month goes from about $32 to $112 a month, and a dedicated IP only enters the picture once it reaches Premium 100k. Free is out of the question at any of these volumes, since 200 emails a day tops out near 6,000 a month.
How Mailjet Compares
Mailjet sits in the low-cost, volume-billed group. It shares an owner with Mailgun: Sinch announced its agreement to acquire Pathwire, “including its Mailgun, Mailjet, and Email on Acid products,” on September 30, 2021. Mailjet also puts a visual editor and contact management in the same plans, which a plan like Mailgun’s Basic does not list.
| Tool | Billing unit | Entry paid price | Free plan |
|---|---|---|---|
| Mailjet | Emails per month | $9 for 8,000 emails | 6,000 a month, 200 a day |
| Mailgun | Emails per month | From $15 for 10,000 emails | 100 a day |
| Brevo | Emails per month | $9 from 5,000 emails | 300 a day |
| MailerLite | Active subscribers and sends | From $12 | 250 subscribers, 2,500 emails a month |
Figures re-checked on each vendor’s pricing page on October 11, 2026. SendGrid’s page renders its prices with JavaScript, so it is left out of the table; see SendGrid’s pricing for that tool.
For a free tier used purely as an SMTP relay, free SMTP servers compared lays out the daily caps side by side.
Frequently Asked Questions
How much does Mailjet cost per month?
As of October 11, 2026: Free is $0, Starter is $9 for 8,000 emails, Essential starts at $19 for 15,000 emails, and Premium starts at $29 for 15,000 emails and reaches $499 for 500,000. Above that, pricing is by quote. Annual billing takes 10% off.
Is Mailjet free?
Yes. The Free plan costs $0, needs no credit card, and includes 6,000 emails a month, up to 200 a day, with up to 1,000 contacts. It includes the API, SMTP relay and webhooks, but not the option to remove the Mailjet logo, which starts on Essential.
What are the limits of Mailjet’s free plan?
Three limits matter: 6,000 emails a month, 200 emails a day, and 1,000 contacts. Emails over the daily cap are queued for the next day and removed after 3 days. A list above 1,000 contacts puts the account on a send hold.
Does Mailjet charge per contact or per email?
Per email. Plans set a monthly email volume. Contacts are capped only on Free (1,000) and Starter (2,000), and Essential and Premium list unlimited contacts.
Is Mailjet cheaper on an annual plan?
Yes, by 10%. Essential 15k drops from $19 to $17.10 a month, and Premium 100k from $112 to $100.80. Annual plans are paid upfront and are non-refundable, and overage is still billed monthly.
What happens if I send more emails than my Mailjet plan allows?
On paid plans, sending continues and the extra emails are billed, from $1.20 to $2.58 per 1,000 depending on the plan, at the next renewal. Upgrading before the cycle ends means the extra emails are deducted from the new plan instead. On Free, the daily cap queues the excess.
Does Mailjet offer a dedicated IP?
Yes, from Premium 100k, upon request. Mailjet reviews your sending profile first and recommends a dedicated IP above 100,000 emails a month. The price is not published, and self-service plans get one IP only.
Who owns Mailjet?
Sinch. Sinch announced in 2021 that it would acquire Pathwire, the parent of Mailgun, Mailjet and Email on Acid, and Mailjet’s site now carries the Sinch Mailjet name.
I’ve spent my career building software at scale with a soft spot for email: deliverability, lifecycle campaigns, and getting messages to actually land. I started Coldletter to fix what bugged me about transactional and marketing email tools. I’m based in Vancouver.