Documented scope and limits; unverified dimensions remain unknown.
RequirementBrevo Transactional EmailResend
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

Sends application email, such as password resets and order confirmations, through the /emails API; marketing broadcasts use a separate API.

Verified Oct 11, 2026 · Resend: 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

Every account starts at 10 API requests per second, whatever the plan; an increase goes through support.

Verified Oct 11, 2026 · Resend help: account quotas and limits

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
Paid plans have no daily cap, but received emails and every To, CC and BCC recipient count toward the monthly quota.

Verified Oct 11, 2026 · Resend help: account quotas and limits

  • Free 3,000 emails per month
  • Pro 50,000 emails per month
  • Scale 100,000 emails per month
Sender domainsNot verified
Pro and Scale can add 100 more domains for USD 20 a month; Enterprise limits are set by contract.

Verified Oct 11, 2026 · Resend help: account quotas and limits

  • Free 3 verified domains
  • Pro 10 domains
  • Scale 1,000 domains
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

Free and Pro: 30-day data retention.

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

  • Scale 30 days
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
Pro: 5 webhook endpoints.

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

  • Free 1 webhook endpoint
  • Scale 10 webhook endpoints
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
USD 30 a month add-on on Scale for customers sending more than 3,000 emails a day; Resend warms up, monitors and scales the IP.

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

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
Slack support and an urgent-response SLA are not included on Free or Pro.

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

  • Free Ticket support
  • Scale Dedicated Slack channel
  • Enterprise Guaranteed response times, a dedicated CSM and personalized migration 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

Paid plans can keep sending past the monthly quota with pay-as-you-go, capped by default at 5 times the quota; sending then pauses until the next billing cycle.

Support can adjust the cap.

Verified Oct 11, 2026 · Resend help: account quotas and limits

  • Pro Pay-as-you-go is switched on in team settings and bills extra emails in buckets of 1,000; without it, Resend notifies you and offers an upgrade.
Coverage note

Starting volume.

All webhook event types are available on every plan.