Documentation-based comparison
Resend versus SMTP2GO
Compare documented scope and conditions. Unknowns remain unknown; different billing units do not establish a cost winner.
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.
| Requirement | Resend | SMTP2GO |
|---|---|---|
| Pricing | From $20/mo | From $15/mo |
| 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
|
|
| 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
| 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
|
|
| Webhooks and events | Pro: 5 webhook endpoints. Verified Oct 11, 2026 · Resend: official product and plan documentation
| 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 |
|
| 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
| Starter: ticket, chat and phone support. Verified Oct 11, 2026 · SMTP2GO: official product and plan documentation
|
| 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
|
|
| Coverage note | All webhook event types are available on every plan. | At the default volume shown. |