Free Tier Tracker

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Free email tiers compared

6 services. Limits as published by each vendor; click the date to open the source.

ServiceFree limitsCatchChecked
Resend (Free)
Free tier
  • Emails3,000 / month
  • Daily limit100 / day
  • Custom domains3
  • Inboxes3
  • Automation runs10,000
100/day cap bites before the monthly limit.15 Oct 2026
Mailgun (Free)
Free tier
  • Emails100 / day
  • Custom sending domains1
  • API keys2
  • SupportTicket
—15 Oct 2026
Postmark (Free)
Free tier
  • Emails100 / month
  • OveragesNot allowed
Positioned for testing integrations, not production.15 Oct 2026
Brevo (Free)
Free tier
  • EmailsUp to 300 / day
  • Credit cardNot required
Sending starts after account approval.15 Oct 2026
MailerSend (Free)
Free tier
  • Emails500 / month
  • Daily API requests1,000
  • Templates10
  • Activity retention1 day
—15 Oct 2026
Mailjet (Free)
Free tier
  • Emails6,000 / month
  • Daily cap200 / day
  • Contacts1,000
Mailjet logo on free emails (removed from Essential).15 Oct 2026