Price checkMonthly
FreeFreeBasic$15/moPro$16.5/mo
See all 4 plans

All Postmark Plans & Pricing

Plan Monthly Annual Best For
View all features by plan (compare side-by-side)

Free

  • 100 emails/month
  • 45-day data retention

Basic

  • 5 custom domains
  • Unlimited emails/day
  • 45-day retention
  • Analytics

Pro

  • 10 custom domains
  • Unlimited emails/day
  • 365-day retention
  • Inbound processing
  • Analytics

Platform

  • Unlimited custom domains
  • Unlimited emails/day
  • 365-day retention
  • Inbound processing
  • Analytics
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What does Postmark actually cost you?

Drag the slider. Pick a tier. Your projected spend updates as you go.

Tier
Billing
Your projected cost$375per month · $15/unit × 25units
Year 1 license$4.5K12 months at this rate
At a glance

List price by tier (annualized, per unit)

Per-unit list price across Postmark's plans, annualized. Custom-priced tiers show a hatched bar.

FreeCustom
Basic$180/yr
Pro$198/yr
Platform$216/yr
Real-world benchmark

Buyers actually pay a median of $249/yr for Postmark contracts (Vendr deal flow, n=31). That's a contract total — the more seats, the more leverage to negotiate down.

Quick Answer
Last verified:
High confidence

Postmark costs Free to $18 per month as of July 2026, with 4 plans available including a free tier. Plans: Free (free), Basic at $15/month, Pro at $16.5/month, and Platform at $18/month. The median contract is $249/year based on 31 verified purchases.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

Postmark offers 4 pricing tiers: Free, Basic, Pro, Platform. A free plan is available. Paid plans include Basic at $15/month, Pro at $16.5/month, Platform at $18/month. The Basic plan is solo developers and smaller teams.

Compared to other email api & delivery software, Postmark is positioned at the budget-friendly price point.

  • Median contract: $249/yr from 31 purchases Thin data
  • 9 documented hidden costs beyond list price
Last verified: | Sources: 2 pricing pages and reviews

How much does Postmark cost?

Postmark offers a free plan with 3 paid tiers from $15 to $18/month. Plans include Free (free), Basic at $15/month, Pro at $16.50/month, Platform at $18/month.

Postmark Pricing Overview

Postmark has 4 pricing plans, including a free tier. Paid plans range from $0 to $18/month. The Free plan is free and is best for testing and side projects. The Basic plan costs $15/month, best for solo developers and smaller teams. The Pro plan costs $16.50/month, best for startups and small businesses. The Platform plan costs $18/month, best for agencies and larger teams.

The median Postmark customer pays $249/year based on 31 verified purchases.

There are at least 9 documented hidden costs beyond Postmark's list price, including implementation, training, and add-on fees.

This pricing was last verified in July 8, 2026 from 2 independent sources.

Try Postmark Free

Postmark pricing starts at $0/month on the Free plan for testing and low-volume sending, with paid plans beginning at $15/month (Basic) for production use. The Pro plan is $16.50/month and the Platform plan is $18/month, with pricing scaling based on email volume sent. All plans require manual account approval before sending can begin.

How Postmark Pricing Compares

Compare Postmark pricing against top alternatives in Email API & Delivery.

SendGrid $0-$89.95/user/mo Compare → Amazon SES $0-$1600/user/mo Compare → Mailgun $0-$90/month Compare →

Compare Postmark vs Alternatives

Before committing to Postmark, compare pricing with these 3 alternatives in the same category.

VSSendGrid
Free

New users testing the platform

Full comparison
VSAmazon SES
Free

Testing and small projects

Full comparison
VSMailgun
Free

Testing and development

Full comparison

All Postmark alternatives & migration guides

What Companies Actually Pay for Postmark

The median Postmark buyer pays $249/year based on 31 verified purchase transactions.

What companies actually pay $249/yr Median across 31 community cost mentions Thin data
Review scores
TrustRadius 9.5out of 10 (6)
Trustpilot 1.3out of 5 (23)
Third-party review aggregates, as of Jul 2026
Top pricing complaints
Account suspension without warning, breaking transactional email for paying customersSevere support quality decline since ActiveCampaign acquisitionUnexplained account rejections during approval processPricing increases applied to all existing customers with little notice
Source: Community cost mentions (Reddit, Hacker News) — aggregated from 31 distinct user reports. Indicative only — not contract-grade data.

Postmark Year 1 Total Cost by Company Size

Real deployment costs including licenses, implementation, training, and admin — not just the sticker price.

Developer Testing $0 Year 1 total
100 emails
Total $0

Free tier for prototyping

Small SaaS $15 Year 1 total

10K transactional emails/month

Growing App $85 Year 1 total

100K emails/month

Low Volume (up to 10,000 emails/month) $15 Year 1 total

Small application or side project sending transactional emails such as password resets and notifications at low volume.

How Postmark Pricing Compares

Software Starting Price Top Price
Postmark Free $18/month
Amazon SES Free $1600/1000 emails
Mailgun Free $90/month
Maileroo Free $150/month
Resend Free $90/month
SendGrid Free $89.95/month

Detailed pricing comparisons:

Browse all Email API & Delivery pricing →

9 Postmark Hidden Costs Beyond the List Price

Beyond the listed price, Postmark has at least 9 documented hidden costs that can significantly increase total cost of ownership.

Watch for 9 hidden costs
  • Credits expire monthly 5-10% of license costs
    low 1 source
    Hacker News "their credits expire at the end of the month"
  • Account Approval Delays 5-10% of license costs
    high 3 sources
    Trustpilot "I wasted an entire week waiting on account approval just to send emails and it is still not resolved. I have a new website and my initial approval was not accepted until I sent them my beta test stie for 'manual' review."
    Trustpilot "Don't come close to this company.. they promise 24h for account review approval but you keep waiting and waiting!! I've sent them countless tickets to support and sales but no one cares.. like a blackhole!"
    Trustpilot "We reviewed your account and based on the information you gave us, it doesn't look like Postmark will be a good fit for your sending needs at this time."
  • Account Suspension Risk 5-15% of license costs
    critical 3 sources
    Trustpilot "Postmark shut down our entire account after a single B2B broadcast sent via their own Broadcast server, despite the recipient origin being clearly explained at signup."
    Trustpilot "They offer good support, but the conditions regarding the percentage of allowed spam are too strict. As you probably know, Google currently limits the percentage of spam to 3 letters per thousand...."
    Trustpilot "Our spam rate went to 0.16 the first time we sent a marketing campaign to all subscribed customers... They 'temporarily suspended' my account 'for my own good'."
  • No refunds for debugging failed emails $50-$200
    medium 1 source
    Trustpilot "Blocked my account, did not tell me, did not give any visible indication, and didn't give an error code. Emails were failing silently. I spent time trying to debug."
  • Strict spam complaint thresholds 10-20% of license costs
    high 1 source
    Trustpilot "They offer good support, but the conditions regarding the percentage of allowed spam are too strict. As you probably know, Google currently limits the percentage of spam to 3 letters per thousand. But Postmark requires one letter per thousand."
  • Pricing Restructure / Legacy Price Increases 10-50% of license costs
    high 4 sources
    Reddit "Postmark started to quietly roll out changes to their pricing model that could 10x subscription fees based on your server/stream usage, etc."
    Reddit "As of Wednesday, we've been informed that all customers on legacy pricing will be subject to the price increase within the next 90 days. We are notifying customers in phases, and within the next three weeks, everyone will receive an official update."
    Reddit "Postmark, but they recently announced a pricing restructure which is pretty bad."
    Reddit "The significant price hike at Postmark is quite surprising, especially considering the magnitude of the increase."
  • Support Quality Decline Post-Acquisition 5-10% of license costs
    high 3 sources
    Trustpilot "I have used and recommended Postmark for years in various companies due to their excellent support and delivery service. However, things have changed since ActiveCampaign took over. As I feared, the deliverability and support quality have declined."
    Trustpilot "Postmark used to be amazing before it was bought by ActiveCampaign. I used to recommend it to all my friends, colleagues and clients. I no longer do."
    Trustpilot "Idiotic chatbot. Our emails were accepted by their SMTP but didnt show in the panel. Also were not delivered."
  • Attachment Size Limit (10MB) 5% of license costs
    low 1 source
    Reddit "The only part I am seeing where they fall a bit short compared to others is the 10 MB attachment limit, but thats not a big deal as we can work around it by sending multiple messages or just using sharepoint to send links for larger files."
  • Delivery Webhook Timing Degradation 5-10% of license costs
    high 1 source
    Trustpilot "We are observing a progressive degradation in delivery webhook timing. Messages that were delivered immediately yesterday are now returning delivery confirmations hours later."
Tip

Ask your Postmark sales rep about these costs upfront. Getting them in writing before signing can save you from surprise charges later.

Full hidden costs breakdown →

Intelligence sourced from 4 independent sources
Hacker News Tech community Trustpilot Consumer reviews Reddit User discussions TrustRadius Enterprise reviews
Key claims include inline source attribution. Data verified against multiple independent sources. 24 source citations total.

Postmark Contract Terms

Postmark contracts do not auto-renew and cannot be downgraded mid-term. Changes require advance notice. These terms are sourced from verified buyer experiences.

Contract Terms
Auto-Renewal No
Mid-Term Downgrade Not allowed
Price Escalation Users report mid-contract price increases following the ActiveCampaign acquisition, with all legacy pricing customers subject to increases within 90 days of notification.
Note

Users report difficulty downgrading subscription tiers — at least one user reports needing to contact support to reduce their plan level, with support being unresponsive.

Based on 2 verified sources

How to Negotiate Postmark Pricing

Postmark contracts are negotiable. These 3 tactics are sourced from real buyer experiences and procurement specialists.

Negotiation Playbook 3 tactics
Startup Program medium success

Postmark has historically offered free access for qualifying new businesses. Check their website for a startup or new business program that may provide several months of free access. Mention your startup status when signing up.

Reddit (r/webdev, r/node)
Leverage Competitor Pricing medium success

Amazon SES ($0.10/1,000 emails) and other competitors are significantly cheaper for high volumes. Use competitor pricing as leverage when negotiating, especially if you're at risk of churning. Postmark has been known to retain customers facing price increases.

Reddit (r/aws, r/Wordpress)
Volume Commitment low success

Postmark's pricing model uses volume tiers — higher volumes receive lower per-email rates. If you can commit to higher monthly volumes, negotiate for the lower per-email rate even if your actual usage is lower.

Reddit pricing discussions
High success Medium Low / difficult

Full negotiation guide →

Postmark Pricing FAQ

01 How much does Postmark cost?

Postmark starts free (100 emails/month), then $15/month for 10K emails. Cost per 1,000 emails drops from $1.50 at 10K to $0.51 at 1.5M volume.

02 Is Postmark cheaper than SendGrid?

At lower volumes, they're similar. At higher volumes, Postmark can be cheaper per email, but SendGrid includes dedicated IPs at Pro tier while Postmark charges $50/month extra.

03 Does Postmark offer annual billing?

No, Postmark only offers monthly billing. There is no annual payment option available, which means you cannot prepay for a year to receive a discount.

04 What are Postmark's spam complaint policies?

Postmark requires maintaining less than 1 spam complaint per 1,000 emails sent, which is stricter than Google's standard of 3 complaints per 1,000. They also count multiple spam complaints per letter. Exceeding this threshold can result in account suspension.

05 What happens if my Postmark account gets suspended?

Account suspensions affect both broadcast and transactional emails simultaneously, which can break your application for paying customers. Support is email-only with no phone or live chat, and resolution can take days or weeks. Credits used during debugging are not refunded.

06 How long does Postmark account approval take?

While Postmark promises 24-hour account review, users report waiting days or weeks for approval. Reviews only happen Monday-Friday during business hours, and you may need to provide beta site access, screenshots, and detailed documentation of your email opt-in process.

07 What support options does Postmark provide?

Postmark only offers email ticket support. There is no phone number or live chat available. Response times can be slow, particularly since the ActiveCampaign acquisition.

08 Do Postmark credits roll over?

No, unused email credits expire at the end of each month and do not roll over to the next billing period.

09 Does Postmark have a free plan?

Yes, Postmark offers a Free plan. However, all accounts require manual approval before sending, and some accounts are rejected without explanation. The free plan is best for testing and very low-volume sending.

10 What happens if my spam complaint rate is too high?

Postmark enforces strict spam complaint thresholds — users report accounts being suspended at rates as low as 0.16% (1.6 per 1,000 emails). Suspensions can block all email streams including transactional emails, potentially breaking live applications. There is no warning before suspension.

11 Has Postmark changed since being acquired by ActiveCampaign?

Many long-term users report significant deterioration in support quality and deliverability since the ActiveCampaign acquisition. Postmark also implemented pricing increases in early 2025 that applied to all customers including those on legacy plans. Support no longer has live chat and is email-only with slower response times.

12 What is Postmark's attachment size limit?

Postmark has a 10MB attachment limit per email. If you need to send larger files, you'll need to use file-sharing links or split content across multiple messages.

13 Can I use Postmark for marketing emails?

Postmark offers separate 'streams' for transactional and broadcast (marketing) emails. However, user reports indicate that issues with broadcast streams can result in full account suspension, including blocking of transactional streams. Users with critical transactional email needs should be cautious about mixing broadcast use.

Is this pricing incorrect? — we'll verify and update it.