Resend vs Postmark
A comparison of Resend and Postmark built from values read directly from each provider's own documentation, with the source recorded against every figure.
The short answer
- 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.
- Pick Postmark if
- Teams that need to answer "what happened to this message" weeks later — 45 days of retention as standard, extendable to a year, is the longest window in this set.
5 sourced criteria separate them:
- Entry paid plan
- Resend: $20/month for Pro, the cheapest paid plan.
- Postmark: $15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
- Pricing model
- 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.
- Postmark: One monthly price per volume tier, chosen on a slider, covering both sent and received email. Overage rates improve as the plan gets larger.
- Emails included
- 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.
- Postmark: 10,000 a month at the $15 Basic tier. The plan price scales with volume — 50,000, 125,000, 300,000, 700,000 and 1.5M are the published steps. The free tier is 100 a month.
- Price per 1,000 over
- 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.
- Postmark: $1.80 per 1,000 on Basic, $1.30 on Pro and $1.20 on Platform. The free tier allows no overage at all.
- Log retention
- Resend: 30 days.
- Postmark: 45 days on Basic. Pro and Platform default to 45 days and can be raised to 365.
Pick the criteria you care about. The chart counts how many of them lean toward each provider — the same read as scanning the bars below, just totalled for the ones you chose.
Resend 0
Postmark 0
At a glance.
| Criterion | Resend | Postmark |
|---|---|---|
| Pricing | ||
| Free tier | Yes | Yes |
| Entry paid plan | $20/month for Pro, the cheapest paid plan. | $15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider. |
| Pricing model | 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. | One monthly price per volume tier, chosen on a slider, covering both sent and received email. Overage rates improve as the plan gets larger. |
| Emails included | 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. | 10,000 a month at the $15 Basic tier. The plan price scales with volume — 50,000, 125,000, 300,000, 700,000 and 1.5M are the published steps. The free tier is 100 a month. |
| Price per 1,000 over | $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. | $1.80 per 1,000 on Basic, $1.30 on Pro and $1.20 on Platform. The free tier allows no overage at all. |
| Log retention | 30 days. | 45 days on Basic. Pro and Platform default to 45 days and can be raised to 365. |
Where they differ.
Entry paid plan
- Resend
- $20/month for Pro, the cheapest paid plan.
- Postmark
- $15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
Sources (2) →Sources ↓
- Pricing — Resend ↗
“Pro [...] $20 / mo [...] 50,000 emails / mo”
Read 2026-09-06 · official pricing
- Pricing — Postmark ↗
“How many emails do you send and receive each month? 10,000 emails [...] Basic $15.00/mo”
Read 2026-09-06 · official pricing
Pricing model
- 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.
- Postmark
- One monthly price per volume tier, chosen on a slider, covering both sent and received email. Overage rates improve as the plan gets larger.
Sources (2) →Sources ↓
- Pricing — Resend ↗
“Domains - $20 / mo [...] Dedicated IPs - $30 / mo [...] Single Sign-On - $150 / mo [...] Extra emails: $0.90 / 1,000”
Read 2026-09-06 · official pricing
- Pricing — Postmark ↗
“How many emails do you send and receive each month? [...] Basic $15.00/mo [...] Pro $16.50/mo [...] Platform $18.00/mo”
Read 2026-09-06 · official pricing
Emails included
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.
10,000 a month at the $15 Basic tier. The plan price scales with volume — 50,000, 125,000, 300,000, 700,000 and 1.5M are the published steps. The free tier is 100 a month.
Sources (2) →Sources ↓
- 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
- Pricing — Postmark ↗
“10,000 50,000 125,000 300,000 700,000 1,500,000 More [...] Basic $15.00/mo [...] Test your integration with 100 emails/month”
Read 2026-09-06 · official pricing
Price per 1,000 over
- 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.
- Postmark
- $1.80 per 1,000 on Basic, $1.30 on Pro and $1.20 on Platform. The free tier allows no overage at all.
Sources (2) →Sources ↓
- Pricing — Resend ↗
“Extra emails: $0.90 / 1,000 [...] Resend automatically charges your plan's overage rate for each additional bucket of 1,000 emails. Available to paid subscriptions.”
Read 2026-09-06 · official pricing
- Pricing — Postmark ↗
“Extra emails @ $1.80 / 1,000 [...] Extra emails @ $1.30 / 1,000 [...] Extra emails @ $1.20 / 1,000 [...] No overages allowed in this plan.”
Read 2026-09-06 · official pricing
Log retention
30 days.
45 days on Basic. Pro and Platform default to 45 days and can be raised to 365.
Sources (2) →Sources ↓
- Pricing — Resend ↗
“30-day data retention”
Read 2026-09-06 · official pricing
- Pricing — Postmark ↗
“45-day data retention [...] Customizable data retention up to 365 days (45-day default)”
Read 2026-09-06 · official pricing
Which should you choose?
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
Choose Postmark if…
Teams that need to answer "what happened to this message" weeks later — 45 days of retention as standard, extendable to a year, is the longest window in this set.
Editorial · Palash Bagchi · approved
Consider something else if…
- 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.
- Postmark: The included volume is small for the price and overage is the most expensive here at $1.80 per 1,000 on the entry plan.
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.
Questions this comparison answers.
Entry paid plan: Resend or Postmark?
Resend: $20/month for Pro, the cheapest paid plan.
Postmark: $15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
Should I choose Resend or Postmark?
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.
Pick Postmark if Teams that need to answer "what happened to this message" weeks later — 45 days of retention as standard, extendable to a year, is the longest window in this set.