What the evidence answers

A reading of reviewed official documentation for Brevo Transactional Email and Mailjet. It is not a hands-on test, a ranking or a recommendation of one product.

Price

  • Brevo Transactional Email From $9/mo
    • Free: no subscription charge
    • Starter: $9.00 monthly
    • Standard: $18.00 monthly
    • Professional: $499.00 monthly
    • Enterprise: Vendor quotation required
  • Mailjet From $9/mo
    • Free: no subscription charge
    • Starter: $9.00 monthly
    • Essential: $19.00 monthly
    • Premium: $29.00 monthly
    • Custom: Vendor quotation required

Both list prices on the same basis. Compare what each plan includes; the lower amount alone does not make the better choice.

Documented for both

Sending volume
Brevo Transactional Email Plans are priced on emails sent; contact-based pricing applies only to marketing features.Free: 300 emails per dayStarter: 5,000 emails per monthStandard: 5,000 emails per monthProfessional: 150,000 emails per month
Mailjet Free: 6,000 emails per monthStarter: 8,000 emails per monthEssential: 15,000 emails per monthPremium: 15,000 emails per month
Webhooks and events
Brevo Transactional Email Event webhooks and real-time tracking are listed.Free: Webhook support included
Mailjet APIs, SMTP relay and webhooks on Free and paid plans.
Dedicated IP
Brevo Transactional Email Dedicated IPs with custom warming schedules are offered to high-volume senders; no price is published.Enterprise: Dedicated IPs are part of the custom Enterprise plan
Mailjet Premium: available on request from the 100,000-send tier.Custom: One dedicated IP, with the option to buy more
Support
Brevo Transactional Email Free: Email supportStarter: Email support in 6 languagesProfessional: Phone support plus 3 hours a year with a deliverability specialistEnterprise: Tailored onboarding and CSM support
Mailjet Phone and chat support start from the 50k plans.Free: Online support in the first month onlyStarter: Online supportPremium: Priority support
Overage charges
Brevo Transactional Email Pay-as-you-go email credits are an alternative to a plan: they do not expire and one email uses one credit.
Mailjet You can keep sending after the plan's emails run out; extra emails are billed per 1,000, at a price the page text does not show.

Limits to check

  • Brevo Transactional Email Attachments are limited to 25 MB per email, and one API request can batch up to 1,000 emails.
  • Mailjet Unused emails do not roll over; they expire at the end of each billing cycle.

Not verified yet

No reviewed evidence for either product on sender domains.

Documented for one product only, shown in the table below: Brevo Transactional Email: log retention.

Not verified means our reviewed sources do not establish it. It does not mean a product lacks the capability or that it costs nothing.

Next steps

  • Ask Brevo Transactional Email about sender domains; our sources do not establish it yet.
  • Ask Mailjet about sender domains and log retention; our sources do not establish them yet.
Documented scope and limits; unverified dimensions remain unknown.
RequirementBrevo Transactional EmailMailjet
Pricing
Who it is for
Transactional email sent by API or SMTP from your application, inside an all-in-one platform that also runs marketing campaigns.

Verified Oct 11, 2026 · Brevo Transactional Email: official product and plan documentation

Email API, SMTP relay and webhooks, sold in plans that also cover marketing contacts and an email editor.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

Coverage limits
Attachments are limited to 25 MB per email, and one API request can batch up to 1,000 emails.

Verified Oct 11, 2026 · Brevo Transactional Email: official product and plan documentation

Unused emails do not roll over; they expire at the end of each billing cycle.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

Sending volume
Plans are priced on emails sent; contact-based pricing applies only to marketing features.

Verified Oct 11, 2026 · Brevo Transactional Email: official product and plan documentation

  • Free 300 emails per day
  • Starter 5,000 emails per month
  • Standard 5,000 emails per month
  • Professional 150,000 emails per month
  • Free 6,000 emails per month
  • Starter 8,000 emails per month
  • Essential 15,000 emails per month
  • Premium 15,000 emails per month
Log retention
Flexible log retention is advertised; a numeric retention window is not stated on this page.

Verified Oct 11, 2026 · Brevo Transactional Email: official product and plan documentation

Not verified
Webhooks and events
Event webhooks and real-time tracking are listed.

Verified Oct 11, 2026 · Brevo Transactional Email: official product and plan documentation

  • Free Webhook support included
APIs, SMTP relay and webhooks on Free and paid plans.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

Dedicated IP
Dedicated IPs with custom warming schedules are offered to high-volume senders; no price is published.

Verified Oct 11, 2026 · Brevo Transactional Email: official product and plan documentation

  • Enterprise Dedicated IPs are part of the custom Enterprise plan
Premium: available on request from the 100,000-send tier.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

  • Custom One dedicated IP, with the option to buy more
Support
  • Free Email support
  • Starter Email support in 6 languages
  • Professional Phone support plus 3 hours a year with a deliverability specialist
  • Enterprise Tailored onboarding and CSM support
Phone and chat support start from the 50k plans.

The page does not say which plan names qualify.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

  • Free Online support in the first month only
  • Starter Online support
  • Premium Priority support
Overage charges
Pay-as-you-go email credits are an alternative to a plan: they do not expire and one email uses one credit.

Pay-as-you-go does not include phone support; the credit price is not shown.

Verified Oct 11, 2026 · Brevo: official pricing page

You can keep sending after the plan's emails run out; extra emails are billed per 1,000, at a price the page text does not show.

Verified Oct 11, 2026 · Mailjet: official product and plan documentation

Coverage note

Starting volume.

No daily sending limit.

1 requirement without reviewed evidence here

Not verified means the reviewed sources do not establish it; it does not mean a product lacks it or that it costs nothing.

  • Sender domains Brevo Transactional Email: not verified · Mailjet: not verified

Choose two or three products.