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Mailjet sending limits (2026): Free 200 a day and 6,000 a month, paid plans by monthly volume, overage, API and size limits
Last verified against official pricing pages · published 8 Nov 2026
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Prices change often. Each price was checked on the platform's official pricing page on the date shown; plans, promos and taxes vary. Confirm on the official site before you buy. Not financial advice.
Short answer: Mailjet's Free plan lets you send 200 emails a day, 6,000 a month, and store 1,000 contacts. Paid plans have no daily limit; you buy a monthly volume (Starter 8,000 for $9, Essential 15,000/50,000, Premium up to 500,000). Go over it and Mailjet keeps sending but bills $1.20–$2.58 per extra 1,000 emails. Separate limits apply to API keys, API calls and message size (15 MB).
From Understanding Mailjet Free Plan Limits, Mailjet Subscription Management, Daily Send Limit for API keys, Blocked or limited account, attachment size limit and API rate limits (checked 2026-11-08); prices from Mailjet's pricing page (live plan data re-checked 2026-11-08). Mailjet is not an affiliate of this site.
Mailjet limits at a glance
| Limit | Free | Starter | Essential | Premium |
|---|---|---|---|---|
| Emails per day | 200 | No daily limit | No daily limit | No daily limit |
| Emails per month | 6,000 | 8,000 | 15,000 or 50,000 | 15,000 to 500,000 |
| Contacts stored | 1,000 | 2,000 | Unlimited | Unlimited |
| Going over | Daily: queued up to 3 days · contacts: sending hold | Billed per 1,000 extra | Billed per 1,000 extra | Billed per 1,000 extra |
| API key Daily Send Limit | — | Default 5× plan limit | Default 5× plan limit | Default 5× plan limit |
| Message size | 15 MB | 15 MB | 15 MB | 15 MB |
The Daily Send Limit help article says it is "only available with paid plans" and defaults to 5× "your subscription sending limit"; it doesn't say whether that means the monthly volume, so check the value shown under Account → API Keys. Custom (contract) plans: quoted volume, Daily Send Limit can be Unlimited.
Free plan: 200 a day, 6,000 a month, 1,000 contacts
- The daily and monthly caps apply together. Even with monthly emails left you can't send more than 200 in one calendar day (help).
- Over the daily cap: extra emails are queued and usually go out the next day, but queued emails are kept for at most 3 days and then deleted undelivered (help).
- Campaigns: in the email editor a Free campaign can go to at most 200 addresses. Mailjet's workaround is lists of up to 200 contacts sent on different days; to send to more at once you need a paid plan (help).
- Contacts: all stored contacts count, including the exclusion list, across your main account and subaccount combined. Over 1,000 triggers a sending hold: no sends, and scheduled campaigns don't go out, until you delete contacts or upgrade. Removing contacts from a list isn't enough; they must be deleted from All Contacts (help).
| Free plan | Per day | Per month | Contacts stored | Over the daily cap |
|---|---|---|---|---|
| Mailjet | 200 | 6,000 | 1,000 | Queued, deleted after 3 days |
| Brevo | 300 | — | 100,000 | Campaign: requeue next day; transactional: up to 1,000 in a retry queue |
| Mailchimp | 250 | 500 | 250 | — |
| MailerLite | — | 2,500 | 250 | — |
"—" means no separate limit of that kind is published in the sources we use. Details: Brevo sending limits · Mailchimp sending limits · MailerLite plans.
Paid plans: monthly volume and what overage costs
Paid plans never stop at the limit. Each extra 1,000 emails is billed at the rate below when your plan renews (monthly even on yearly billing), and overage can't be switched off (help).
| Plan | Price /mo | Each extra 1,000 (USD · EUR · GBP) | With 5,000 extra emails |
|---|---|---|---|
| Starter 8,000 | $9 | $2.58 · €2.31 · £1.99 | $21.90 (13,000 sent) |
| Essential 15,000 | $19 | $2.58 · €2.31 · £1.99 | $31.90 (20,000 sent) |
| Essential 50,000 | $40 | $1.52 · €1.39 · £1.20 | $47.60 (55,000 sent) |
| Premium 15,000 | $29 | $2.58 · €2.31 · £1.99 | $41.90 (20,000 sent) |
| Premium 50,000 | $59 | $1.52 · €1.39 · £1.20 | $66.60 (55,000 sent) |
| Premium 100,000 | $112 | $1.39 · €1.25 · £1.06 | $118.95 (105,000 sent) |
| Premium 250,000 | $265 | $1.25 · €1.13 · £0.99 | $271.25 (255,000 sent) |
| Premium 500,000 | $499 | $1.20 · €1.06 · £0.93 | $505 (505,000 sent) |
USD list prices, monthly billing, excluding VAT. Overage rates are Mailjet's own per-currency prices. The last column is our arithmetic (plan price + 5 × the USD rate); Mailjet doesn't say how it rounds partial blocks of 1,000, so we only use whole thousands. If you upgrade before the billing cycle ends, emails already sent over the limit are deducted from the new plan instead of being billed (help). When to upgrade instead: Mailjet plans.
Which Mailjet plan your list needs
Mailjet charges by emails, so how often you send matters as much as list size. Each cell is the cheapest Mailjet plan whose monthly volume covers every contact at that frequency, with no overage.
| Contacts | Monthly | Weekly | Twice a week | Daily |
|---|---|---|---|---|
| 200 | $0 (Free) | $0 (Free) | $0 (Free) | $0 (Free) |
| 500 | $9 (Starter) | $9 (Starter) | $9 (Starter) | $19 (Essential) |
| 1,000 | $9 (Starter) | $9 (Starter) | $9 (Starter) | $40 (Essential) |
| 2,000 | $9 (Starter) | $9 (Starter) | $40 (Essential) | $112 (Premium) |
| 5,000 | $19 (Essential) | $40 (Essential) | $40 (Essential) | $265 (Premium) |
| 10,000 | $19 (Essential) | $40 (Essential) | $112 (Premium) | $499 (Premium) |
| 25,000 | $40 (Essential) | $112 (Premium) | $265 (Premium) | Custom |
Our calculator, USD monthly billing. Free only fits up to 200 contacts per send because of the daily cap; Starter also caps contacts at 2,000. "Custom" means more than 500,000 emails a month. At 5,000 contacts: monthly $19, weekly $40, daily $265. Try your own numbers in the calculator or compare with Mailjet vs Mailchimp, Brevo and MailerLite.
API, account and size limits
- API key Daily Send Limit (paid plans): default 5× your subscription sending limit, Unlimited only on Custom. You can set a different limit per key; a key that hits it is quarantined until you raise it. "0" blocks the key and needs Support to change (help).
- API rate limits: per API key per second, HTTP 429 when exceeded. Mailjet doesn't publish the numbers; it says the Send API limit is high and other endpoints are much lower (developer docs).
- Test Mode: some new accounts are held to 10 emails an hour until Mailjet verifies the account; upgrading doesn't lift it. Other new accounts get an hourly limit that Support can review after a week of healthy sending (help).
- Compliance limits: exceeding Mailjet's acceptable-use thresholds brings a 7-day sending limit (again for 7 days if repeated); high spam reports bring a rate limit; an unpaid invoice can restrict sending and, after 30 days overdue, suspend service (help). Mailjet doesn't publish the thresholds.
- Message size: 15 MB per email on all plans, attachments only via API or SMTP, and some inbox providers block messages over 5 MB (help).
Related: Mailjet plans · Is Mailjet worth it? · Mailjet pricing · Mailjet alternatives · Mailjet vs Brevo · Mailjet vs Mailchimp · Brevo sending limits · Mailchimp sending limits · Klaviyo limits · Constant Contact email limits
Sources
- Mailjet help: Understanding Mailjet Free Plan Limits (200/day, 6,000/month, 1,000 contacts, 3-day queue, sending hold; updated 2026-10-22, checked 2026-11-08)
- Mailjet help: Subscription Management (overage per 1,000 in USD/EUR/GBP, billing at renewal, no rollover; updated 2026-10-09, checked 2026-11-08)
- Mailjet help: Daily Send Limit for Mailjet API keys (default 5×, quarantine; checked 2026-11-08)
- Mailjet help: Blocked or Limited Account (Test Mode 10/hour, 7-day compliance limit; checked 2026-11-08)
- Mailjet help: attachment size limit (15 MB; checked 2026-11-08)
- Mailjet developer docs: Rate Limits (per key per second, 429; checked 2026-11-08)
- Mailjet pricing (plan cards "No daily sending limit", prices, FAQ; plan data re-checked 2026-11-08), Brevo, Mailchimp, MailerLite via our price data
FAQ
What is Mailjet's sending limit?
It depends on the plan. Free: 200 emails a day and 6,000 a month. Paid plans have no daily sending limit; you buy a monthly volume: Starter 8,000, Essential 15,000 or 50,000, Premium 15,000 up to 500,000 emails a month. Above that, Mailjet quotes a Custom plan (Mailjet pricing).
What is the Mailjet daily sending limit?
Only the Free plan has one: 200 emails per calendar day, and it applies together with the 6,000-a-month cap, so you can't send more than 200 in a day even with monthly emails left (Mailjet help). Starter, Essential and Premium show "No daily sending limit" on the pricing page. Separately, paid accounts have a Daily Send Limit per API key that you can change yourself (see below).
What happens if I send more than 200 emails a day on Mailjet Free?
The extra emails go into a queue and are sent when capacity frees up, typically the next day. Queued emails are kept for at most 3 days; anything still unsent after that is removed and never delivered. In the email editor a Free campaign can go to at most 200 addresses, so Mailjet suggests splitting contacts into lists of up to 200 and sending them on different days (Mailjet help).
What is the Mailjet contact limit?
Free stores up to 1,000 contacts and Starter up to 2,000; Essential and Premium have unlimited contacts. On Free every stored contact counts, including the exclusion list, and the limit covers your main account and subaccount combined. Go over it and Mailjet puts a sending hold on the account until you delete contacts or upgrade (Mailjet help). Dropping from Essential to Starter with more than 2,000 contacts also blocks sending (Mailjet help).
What happens if I go over my monthly Mailjet volume?
On paid plans sending doesn't stop: extra emails are billed per 1,000, from $2.58 on Starter, Essential 15k and Premium 15k down to $1.20 on Premium 500k, and charged when the plan renews. You can't switch overage off. If you upgrade before the cycle ends, the extra emails come out of the new plan instead of being billed (Mailjet help). Unused emails never roll over.
Is it cheaper to pay overage or upgrade on Mailjet?
For a one-off spike, overage can be cheaper: Essential 15k plus 5,000 extra emails costs $31.90 ($19 + 5 × $2.58), still below Essential 50k at $40. If you go over every month, the next tier usually wins; our Mailjet plans guide lists the volume at which each upgrade pays off.
What is the Mailjet API rate limit?
Mailjet limits API calls per API key per second and returns HTTP 429 when you hit it. It says the transactional Send API has a high limit and other endpoints are much lower, but it doesn't publish the numbers, so we don't guess them (Mailjet developer docs). It recommends waiting and retrying on 429, using bulk endpoints and separate subaccounts per application.
What is the Mailjet API key Daily Send Limit?
On paid plans each API key has a Daily Send Limit. By default it is 5× your subscription sending limit (Unlimited only on Custom contract accounts), and you can change it per key under Account → API Keys. If a key hits it, the key is quarantined (rate limited) until you raise the limit. Setting it to 0 blocks the key and needs Support to undo (Mailjet help).
Why is my Mailjet account limited to 10 emails an hour?
That's Test Mode, applied to some new accounts until Mailjet verifies your account details; reply to Mailjet's email with the requested information. Upgrading your plan doesn't remove it. Some new accounts also get an hourly limit that Support can lift after at least a week of healthy sending, and accounts that break the acceptable-use thresholds get a 7-day sending limit (Mailjet help).
What is the Mailjet email size or attachment limit?
The whole message must not exceed 15 MB on every plan. Attachments are only possible through the API or SMTP relay, not the campaign editor, and Mailjet warns that some inbox providers block messages over 5 MB, so it recommends linking to files instead (Mailjet help).
Related guides: Is Mailjet worth it in 2026? Cost vs Mailchimp, Brevo and MailerLite, Free 200/day limit and when Essential beats them · Brevo Free plan limits (2026) · Email sending limits by platform (2026) · How much does Mailchimp cost? Per month, per year and per contact (2026) · How newsletter platform prices changed 2023–2026 (from archived pricing pages) · Mailchimp Free plan limits (2026) · Is Constant Contact free? No free plan, a free trial, then from $12 a month · Nonprofit Email Marketing Discounts (2026) · all guides
Comparisons: Mailchimp vs MailerLite · Brevo vs MailerLite · Brevo vs Mailchimp · Mailjet vs Mailchimp · Mailjet vs Brevo · Mailjet vs MailerLite · Cheapest for 500, 1,000, 2,500, 5,000, 10,000, 25,000 subscribers
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