Postmark
Transactional email service priced by monthly volume, with configurable log retention and inbound processing.
- Yes
- $15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
- Not documented
Who it suits.
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.
Consider something else if…
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.
Editorial · Palash Bagchi · approved
What the documentation says.
Each value below links to the page it was read from, with the sentence it came from. Criteria Postmark does not publish are not listed.
Pricing
Free tier
Yes
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“Free $0.00/mo Test your integration with 100 emails/month [...] Everyone starts on our free Developer tier, which includes 100 emails every month. And it never expires or runs out. [...] No overages allowed in this plan.”
Read 2026-09-06 · official pricing
Entry paid plan
$15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
Sources (1) →Sources ↓
- 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
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 (1) →Sources ↓
- 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
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 (1) →Sources ↓
- 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
$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 (1) →Sources ↓
- 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
45 days on Basic. Pro and Platform default to 45 days and can be raised to 365.
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“45-day data retention [...] Customizable data retention up to 365 days (45-day default)”
Read 2026-09-06 · official pricing
Inbound email
Limited
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“Pro [...] Inbound email processing [...] Platform [...] Inbound email processing”
Read 2026-09-06 · official pricing