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AhaSend vs Postmark

SEPT 2026 audit

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

Reviewed by Palash BagchiUpdated 15 criteria comparedSources last checked

The short answer

Choose AhaSend if…

EU-resident sending where you want to choose how long message data is kept — retention is a setting with a floor of zero on paid plans, not a policy you inherit.

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…

  • AhaSend: The published table stops at 100,000 emails and does not state a per-thousand overage rate, so what happens past the plan ceiling is not documented.
  • 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.

Neither quite fits? Every other option, ranked by iScore: AhaSend alternatives · Postmark alternatives

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

Visit AhaSend documentationVisit Postmark 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.

CriterionAhaSendPostmark
Pricing
Free tierYesYes
Kind of free offerFree tierFree tier
What the free plan includes
1,000 emails a month, with no credit card required to start.
100 emails a month on the Developer tier, intended for testing an integration rather than production sending.
Credit card to startNoNo
When the free offer endsNever — the free tier runs indefinitely within its monthly limit.Never — the free Developer plan does not expire.
Entry paid plan
$10/month for Pro; Max is $80/month.
$15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
Pricing modelVolume plans on EU multi-region infrastructure, with retention as a plan axis rather than a fixed policy — every tier states a range, and the floor is zero on the paid plans.One monthly price per volume tier, chosen on a slider, covering both sent and received email. Overage rates improve as the plan gets larger.
Email
Emails included
25,000 a month on Pro and 100,000 on Max. The free plan allows 1,000.
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.
Log retentionConfigurable rather than fixed: 1 to 7 days on the free plan, 0 to 14 on Pro and 0 to 30 on Max. The lower bound of zero means retention can be turned off entirely.45 days on Basic. Pro and Platform default to 45 days and can be raised to 365.
Dedicated IPLimitedLimited
Compliance
GDPR / data residency
All email content, message data, metadata, logs and analytics are stored in the EU, in datacenters on hardware AhaSend owns and operates in Germany and Finland.
States its compliance, data protection and information security teams prepared its services for GDPR.

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

AhaSend

1,000 emails a month, with no credit card required to start.

Postmark

100 emails a month on the Developer tier, intended for testing an integration rather than production sending.

Sources (2) →

When the free offer ends

AhaSend
Never — the free tier runs indefinitely within its monthly limit.
Postmark
Never — the free Developer plan does not expire.
Sources (2) →
  • AhaSend Pricing ↗

    “There's no trial period that expires, you can continue using the free tier indefinitely as long as you stay within the monthly limit.”

    Read 2026-09-13 · official pricing · Report a correction

  • Postmark Pricing ↗

    “All new accounts start off on our free developer plan with 100 emails per month. Use it for however long you need, it doesn't expire.”

    Read 2026-09-13 · official pricing · Report a correction

Entry paid plan

AhaSend
$10/month for Pro; Max is $80/month.
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) →

Pricing model

AhaSend
Volume plans on EU multi-region infrastructure, with retention as a plan axis rather than a fixed policy — every tier states a range, and the floor is zero on the paid plans.
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) →
  • Pricing — AhaSend ↗

    “Start for free. Scale effortlessly. Pay for what you use. [...] Multi-region EU infrastructure 1 to 7-day retention [...] 0 to 14-day retention”

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

  • 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 · Report a correction

Emails included

AhaSend

25,000 a month on Pro and 100,000 on Max. The free plan allows 1,000.

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.

Sources (2) →
  • Pricing — AhaSend ↗

    “Pro [...] $10 /month 25,000 emails per month [...] Max $80 /month 100,000 emails per month [...] Free $0 1000 emails per month”

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

  • 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 · Report a correction

Log retention

AhaSend
Configurable rather than fixed: 1 to 7 days on the free plan, 0 to 14 on Pro and 0 to 30 on Max. The lower bound of zero means retention can be turned off entirely.
Postmark
45 days on Basic. Pro and Platform default to 45 days and can be raised to 365.
Sources (2) →

GDPR / data residency

AhaSend
All email content, message data, metadata, logs and analytics are stored in the EU, in datacenters on hardware AhaSend owns and operates in Germany and Finland.
Postmark
States its compliance, data protection and information security teams prepared its services for GDPR.
Sources (2) →

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

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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.

Uptime SLAAhaSend: 99.9% uptime excluding planned maintenance, with a 5% monthly-fee credit for every 30 minutes of downtime below it, capped at 100% of the monthly fee.
Price per 1,000 overPostmark: $1.80 per 1,000 on Basic, $1.30 on Pro and $1.20 on Platform. The free tier allows no overage at all.
Inbound emailPostmark: Limited
ISO 27001AhaSend: GDPR compliant Hosted in Europe ISO 27001 · in progressPostmark: not stated on its own page when read on 2026-09-21 — corrections welcome · every such claim about Postmark.
04.

Questions this comparison answers.

Entry paid plan: AhaSend or Postmark?

AhaSend: $10/month for Pro; Max is $80/month.

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 AhaSend or Postmark?

Pick AhaSend if EU-resident sending where you want to choose how long message data is kept — retention is a setting with a floor of zero on paid plans, not a policy you inherit.

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.

Provider pages

AhaSendEU multi-region email API priced by volume, with data retention configurable per plan rather than fixed.PostmarkTransactional email service priced by monthly volume, with configurable log retention and inbound processing.

Related comparisons

AhaSend vs Amazon SESAhaSend vs MailerSendAhaSend vs MailgunAhaSend vs ResendAhaSend vs SMTP2GOMailerSend vs PostmarkPostmark vs Amazon SESPostmark vs Mailgun

Comments

Every page here is sourced and dated.