Documented scope and limits; unverified dimensions remain unknown.
RequirementMailerSendResend
Pricing
Who it is for
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

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
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

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
  • Free 500 emails per month
  • Hobby 5,000 emails per month
  • Starter 50,000 emails per month
  • Professional 50,000 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 domains
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
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
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
Free and Pro: 30-day data retention.

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

  • Scale 30 days
Webhooks and events
  • Free 1 webhook
  • Hobby 1 webhook
  • Starter 50 webhooks
  • Professional Unlimited, subject to the plan-limits policy
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 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

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

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

At the volume shown on the plan card.

All webhook event types are available on every plan.