What the evidence answers

A reading of reviewed official documentation for Brevo Transactional Email and MailerSend. 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
  • MailerSend From $7/mo
    • Free: no subscription charge
    • Hobby: $7.00 monthly
    • Hobby: $75.60 annual ($6.30/mo equivalent)
    • Starter: $35.00 monthly
    • Starter: $378.00 annual ($31.50/mo equivalent)
    • Professional: $110.00 monthly

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
MailerSend Free: 500 emails per monthHobby: 5,000 emails per monthStarter: 50,000 emails per monthProfessional: 50,000 emails per month
Log retention
Brevo Transactional Email Flexible log retention is advertised; a numeric retention window is not stated on this page.
MailerSend Searchable activity data can be extended up to 365 days, from USD 5.00.Free: 1 day of activity dataHobby: 1 day of activity dataStarter: 7 days of activity dataProfessional: 30 days of activity data
Webhooks and events
Brevo Transactional Email Event webhooks and real-time tracking are listed.Free: Webhook support included
MailerSend Free: 1 webhookHobby: 1 webhookStarter: 50 webhooksProfessional: Unlimited, subject to the plan-limits policy
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
MailerSend Dedicated IPs are only for Enterprise accounts sending more than 100,000 emails a week.
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
MailerSend Free: LimitedHobby: Email supportStarter: Email and live chat supportProfessional: Priority email support, live chat and onboarding assistance
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.
MailerSend Sending continues past the monthly quota and extra emails are billed per 1,000; the email count resets every 30 days.

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.
  • MailerSend Daily API requests are capped by plan: 100 on Free, 1,000 on Hobby, 100,000 on Starter and 500,000 on Professional.

Not verified yet

Every compared requirement has evidence for at least one.

Documented for one product only, shown in the table below: MailerSend: sender domains.

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.
Documented scope and limits; unverified dimensions remain unknown.
RequirementBrevo Transactional EmailMailerSend
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 and SMTP relay for sending email, from a free 500-email plan upward.

Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table

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

Daily API requests are capped by plan: 100 on Free, 1,000 on Hobby, 100,000 on Starter and 500,000 on Professional.

Table columns run Professional, Starter, Hobby, Free.

Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table

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 500 emails per month
  • Hobby 5,000 emails per month
  • Starter 50,000 emails per month
  • Professional 50,000 emails per month
Sender domainsNot verified
An extra domain space costs USD 4.00; the billing period is not stated.

Available on Starter, Professional and Enterprise.

Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table

  • Free 1 sending domain
  • Hobby 1 sending domain
  • Starter 10 sending domains
  • Professional Unlimited, subject to the plan-limits policy
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

Searchable activity data can be extended up to 365 days, from USD 5.00.

Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table

  • Free 1 day of activity data
  • Hobby 1 day of activity data
  • Starter 7 days of activity data
  • Professional 30 days of activity data
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
  • Free 1 webhook
  • Hobby 1 webhook
  • Starter 50 webhooks
  • Professional Unlimited, subject to the plan-limits policy
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
Dedicated IPs are only for Enterprise accounts sending more than 100,000 emails a week.

Verified Oct 11, 2026 · MailerSend pricing, monthly plan cards and comparison table

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
  • Free Limited
  • Hobby Email support
  • Starter Email and live chat support
  • Professional Priority email support, live chat and onboarding assistance
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

Sending continues past the monthly quota and extra emails are billed per 1,000; the email count resets every 30 days.

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

Coverage note

Starting volume.

At the volume shown on the plan card.

Choose two or three products.