What the evidence answers

A reading of reviewed official documentation for Resend and SMTP2GO. It is not a hands-on test, a ranking or a recommendation of one product.

Price

  • Resend From $20/mo
    • Free: no subscription charge
    • Pro: $20.00 monthly
    • Scale: $90.00 monthly
    • Enterprise: Vendor quotation required
  • SMTP2GO From $15/mo
    • Free: no subscription charge
    • Starter: $15.00 monthly
    • Starter: $150.00 annual ($12.50/mo equivalent)
    • Professional: $75.00 monthly
    • Professional: $750.00 annual ($62.50/mo equivalent)
    • Premier: 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
Resend Paid plans have no daily cap, but received emails and every To, CC and BCC recipient count toward the monthly quota.Free: 3,000 emails per monthPro: 50,000 emails per monthScale: 100,000 emails per month
SMTP2GO Free: 1,000 emails per monthStarter: 10,000 emails per monthProfessional: 100,000 emails per monthPremier: More than 3,000,000 emails a month
Sender domains
Resend Pro and Scale can add 100 more domains for USD 20 a month; Enterprise limits are set by contract.Free: 3 verified domainsPro: 10 domainsScale: 1,000 domains
SMTP2GO SPF and DKIM are set up automatically for your sending domains.
Log retention
Resend Free and Pro: 30-day data retention.Scale: 30 days
SMTP2GO Free: 5 days of email reportingStarter: 30 days of email reportingProfessional: 30 days of email reporting
Dedicated IP
Resend 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.
SMTP2GO Professional: Dedicated IP address included
Support
Resend Slack support and an urgent-response SLA are not included on Free or Pro.Free: Ticket supportScale: Dedicated Slack channelEnterprise: Guaranteed response times, a dedicated CSM and personalized migration support
SMTP2GO Starter: ticket, chat and phone support.Free: Ticket support; toll-free phone and live chat for the first 14 days onlyProfessional: Ticket, chat and phone support
Overage charges
Resend 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.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.
SMTP2GO Free: Extra emails are not permitted on Free.

Limits to check

  • Resend Every account starts at 10 API requests per second, whatever the plan; an increase goes through support.
  • SMTP2GO The free plan is limited to 200 emails a day and does not allow extra emails.

Not verified yet

Every compared requirement has evidence for at least one.

Documented for one product only, shown in the table below: Resend: webhooks and events.

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 SMTP2GO about webhooks and events; our sources do not establish it yet.
Documented scope and limits; unverified dimensions remain unknown.
RequirementResendSMTP2GO
Pricing
Who it is for
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

Email delivery for transactional email from apps, everyday email from Outlook and marketing email with an unsubscribe link.

Verified Oct 11, 2026 · SMTP2GO homepage

Coverage limits
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

The free plan is limited to 200 emails a day and does not allow extra emails.

Verified Oct 11, 2026 · SMTP2GO pricing, loaded monthly plan cards

Sending volume
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
  • Free 1,000 emails per month
  • Starter 10,000 emails per month
  • Professional 100,000 emails per month
  • Premier More than 3,000,000 emails a month
Sender domains
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
SPF and DKIM are set up automatically for your sending domains.

Verified Oct 11, 2026 · SMTP2GO homepage

Log retention
Free and Pro: 30-day data retention.

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

  • Scale 30 days
  • Free 5 days of email reporting
  • Starter 30 days of email reporting
  • Professional 30 days of email reporting
Webhooks and events
Pro: 5 webhook endpoints.

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

  • Free 1 webhook endpoint
  • Scale 10 webhook endpoints
Not verified
Dedicated IP
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

  • Professional Dedicated IP address included
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
Starter: ticket, chat and phone support.

Verified Oct 11, 2026 · SMTP2GO: official product and plan documentation

  • Free Ticket support; toll-free phone and live chat for the first 14 days only
  • Professional Ticket, chat and phone support
Overage charges
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.
  • Free Extra emails are not permitted on Free.
Coverage note

All webhook event types are available on every plan.

At the default volume shown.

Choose two or three products.