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SMTP2GO vs Resend

SEPT 2026 audit

A comparison of SMTP2GO and Resend built from values read directly from each provider's own documentation, with the source recorded against every figure.

Reviewed by Palash BagchiUpdated 17 criteria comparedSources last checked

The short answer

Choose SMTP2GO if…

Steady sending where the overage rate matters more than the plan fee — $0.85 per thousand on Professional is the lowest published here, and 30 days of reporting comes on every paid tier rather than as an upgrade.

Editorial · Palash Bagchi · approved

Choose Resend if…

Projects that want a generous paid allowance for the money — 50,000 emails at $20 is several times what the same spend buys at Postmark or Mailgun.

Editorial · Palash Bagchi · approved

Consider something else if…

  • SMTP2GO: A dedicated IP needs the $75 Professional plan, and the entry tier's 10,000 emails is a quarter of what Resend includes for twice the price.
  • Resend: Log retention is 30 days and not extendable, and a dedicated IP needs the Scale plan plus 3,000 emails a day before it is offered at all.

Neither quite fits? Every other option, ranked by iScore: SMTP2GO alternatives · Resend alternatives

7 sourced criteria separate them — see where, with sources, below.

Visit SMTP2GO documentationVisit Resend documentation

No affiliate links, sponsored placements or paid rankings appear on this site. Ordering follows the sourced data and the stated criteria.

01.

At a glance.

CriterionSMTP2GOResend
Pricing
Free tierYesYes
Kind of free offerFree tierFree tier
What the free plan includes
1,000 emails a month.
3,000 emails a month capped at 100 a day, with 30 days of data retention.
Entry paid plan
$10/month for Starter, or $100 a year. Professional is $75/month.
$20/month for Pro, the cheapest paid plan.
Pricing modelMonthly or annual volume plans — the annual price is ten months' worth — with per-thousand overage that improves on the larger plan, and SMS billed alongside email.Monthly plan with an included allowance, then $0.90 per 1,000 beyond it. Domains, dedicated IPs and SSO are priced as separate add-ons at $20, $30 and $150 a month.
Email
Emails included
10,000 a month on Starter and 100,000 on Professional. The free plan allows 1,000.
50,000 emails a month on Pro, the cheapest paid plan; 100,000 on Scale. The free plan allows 3,000 a month and caps the day at 100.
Price per 1,000 over
$1 per thousand on Starter, falling to $0.85 on Professional — the cheapest published overage of any provider here.
$0.90 per 1,000 on Pro and Scale, charged automatically in buckets of 1,000. Paid plans only — the free plan stops at its limit.
Log retention
30 days of email reporting, on Starter and Professional alike rather than rising with the plan.
30 days.
Dedicated IPLimitedLimited
Support
Support on entry paid planTicket, chat and phone support on Starter ($10/month), the cheapest plan.Four support rows across Free, Pro, Scale and Enterprise: ticket support, Slack support, an urgent response SLA and deliverability expertise. Ticket support is the only one with no absence marks against it.

Only criteria both providers publish appear here; a tinted cell marks a real difference. Criteria only one of them documents are listed below, and an absence there means we found no source — not that the feature is missing. How we source this.

The small bar above a value is inetGeek's own lean toward that side — computed from the same facts shown, never a number the provider published. See the picker below "The short answer" to weigh only the criteria you care about.

02.

Where they differ.

What the free plan includes

SMTP2GO

1,000 emails a month.

Resend

3,000 emails a month capped at 100 a day, with 30 days of data retention.

Sources (2) →

Entry paid plan

SMTP2GO
$10/month for Starter, or $100 a year. Professional is $75/month.
Resend
$20/month for Pro, the cheapest paid plan.
Sources (2) →

Pricing model

SMTP2GO
Monthly or annual volume plans — the annual price is ten months' worth — with per-thousand overage that improves on the larger plan, and SMS billed alongside email.
Resend
Monthly plan with an included allowance, then $0.90 per 1,000 beyond it. Domains, dedicated IPs and SSO are priced as separate add-ons at $20, $30 and $150 a month.
Sources (2) →

Emails included

SMTP2GO

10,000 a month on Starter and 100,000 on Professional. The free plan allows 1,000.

Resend

50,000 emails a month on Pro, the cheapest paid plan; 100,000 on Scale. The free plan allows 3,000 a month and caps the day at 100.

Sources (2) →
  • Pricing — SMTP2GO ↗

    “Starter [...] 10,000 emails/mo [...] Professional [...] 100,000 emails/mo [...] free plan for up to 1,000 emails per month”

    Read 2026-09-06 · official pricing · Report a correction

  • Pricing — Resend ↗

    “Pro [...] $20 / mo 50,000 emails / mo [...] Scale [...] $90 / mo 100,000 emails / mo [...] Free [...] 3,000 emails / mo 100 emails a day”

    Read 2026-09-06 · official pricing · Report a correction

Price per 1,000 over

SMTP2GO
$1 per thousand on Starter, falling to $0.85 on Professional — the cheapest published overage of any provider here.
Resend
$0.90 per 1,000 on Pro and Scale, charged automatically in buckets of 1,000. Paid plans only — the free plan stops at its limit.
Sources (2) →

Log retention

SMTP2GO

30 days of email reporting, on Starter and Professional alike rather than rising with the plan.

Resend

30 days.

Sources (2) →

Support on entry paid plan

SMTP2GO
Ticket, chat and phone support on Starter ($10/month), the cheapest plan.
Resend
Four support rows across Free, Pro, Scale and Enterprise: ticket support, Slack support, an urgent response SLA and deliverability expertise. Ticket support is the only one with no absence marks against it.
Sources (2) →
  • SMTP2GO Pricing ↗

    “10,000 emails/mo 30 days of email reporting ticket/chat/phone support subaccount management sms messaging”

    Read 2026-09-14 · official pricing · Report a correction

  • Resend Pricing ↗

    “Customer support Free Pro Scale Enterprise Ticket support Slack support - - Urgent response SLA - - Deliverability expertise -”

    Read 2026-09-14 · official pricing · Report a correction

When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.

Confirm by email; unsubscribe from any issue. Your address goes to Kit and nowhere else — what we do with it.

03.

Documented by only one.

These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing — except where we say we read the other provider's own page on a given date and it does not state it. Those rows lean, and the provider can correct them with a link.

Credit card to startSMTP2GO: No
Response time commitmentResend: An urgent response SLA is sold as a higher support tier rather than included, and no time is stated for it anywhere on the pricing page.
SOC 2Resend: SOC 2 Type II compliant; audit completed by Vanta & Advantage Partners.
ISO 27001Resend: Not ISO 27001 certified — holds SOC 2 Type II instead.
HIPAAResend: Not HIPAA compliant; cannot sign a Business Associate Agreement.
GDPR / data residencyResend: States compliance with all articles of GDPR.
Encryption at restResend: All datastores encrypted at rest with AES-256.
04.

Questions this comparison answers.

Entry paid plan: SMTP2GO or Resend?

SMTP2GO: $10/month for Starter, or $100 a year. Professional is $75/month.

Resend: $20/month for Pro, the cheapest paid plan.

Should I choose SMTP2GO or Resend?

Pick SMTP2GO if Steady sending where the overage rate matters more than the plan fee — $0.85 per thousand on Professional is the lowest published here, and 30 days of reporting comes on every paid tier rather than as an upgrade.

Pick Resend if Projects that want a generous paid allowance for the money — 50,000 emails at $20 is several times what the same spend buys at Postmark or Mailgun.

Provider pages

SMTP2GOSMTP relay and email API with volume plans, 30 days of reporting on every tier and the lowest published overage rate in this set.ResendTransactional email API with a monthly sending allowance, per-1,000 overage and add-on dedicated IPs.

Related comparisons

AhaSend vs ResendAhaSend vs SMTP2GOMailerSend vs ResendMailerSend vs SMTP2GOResend vs Amazon SESResend vs MailgunResend vs PostmarkSMTP2GO vs Amazon SES

Comments

Every page here is sourced and dated.