Postmark vs SMTPeter (2026): which should you pick?
As of Nov 13, 2026, Postmark grades higher than SMTPeter: 2.2 against 1.4 out of 4.0.
Checked Oct 18, 2026 and Nov 13, 2026 · graded Oct 18, 2026 and Nov 13, 2026 by ToolGPA
Postmark grades higher on the free plan, features and platforms. They get the same grade on value for money and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
Postmark
Transactional email API and SMTP, with broadcasts on a separate stream
SMTPeter
Dutch-hosted SMTP and REST email service with a dedicated IP
Which one is for you
Pick Postmark if
- Fits if you want password resets kept on a separate stream from your newsletters
- Works for apps that need to look back at exactly what an email said weeks later
Look elsewhere if
- Pricey if you send 50,000 emails a month, at $55 with no yearly discount
- Skip it if you want a free plan to run a small app on, as it's 100 emails a month with no tier until 10,000
- Tight if you're on Basic, with 4 users, 5 sending domains and no inbound email
- Not for you if you want a dedicated IP below 300,000 emails a month, and each one is $50 a month on Pro or higher
- Watch out: DMARC reports are an add-on from $14 a month per domain
Pick SMTPeter if
- Fits if you want your email handled in the Netherlands on an IP of your own
- Works for apps sending around 25,000 emails a month at a steady rate
Look elsewhere if
- Skip it if you want a free plan or a trial, as there isn't one
- Pricey if you only send a little, since the license starts at €55 a month
- Tight if you need more than 1 IP or 1 sender domain: each costs extra, and over five domains means contacting the vendor
- Watch out: technical support is a separate €89 a month
- Watch out: prices are in euros and the page doesn't say whether VAT is included
How we grade them
| 2.2GPAPostmarkFair | 1.4GPASMTPeterWeak | |
|---|---|---|
| Value for money | DGraded on 50,000 emails a month: $55 on Basic or $60.50 on Pro, billed monthly only. That's the dearest in this category at that volume, roughly twice the middle. Bootstrapped companies can ask for $75 of credit. | D€55 a month for 25,000 emails and 1 IP. Email sending tools start around $9, so this is near the top of the category. |
| Free plan and trial | CA free developer plan that never expires and needs no card, but it's 100 emails a month with no way to buy more. That's for testing an integration, not running an app. | FNo free plan or trial on the pricing section. |
| Features | BAPI and SMTP with SDKs, separate streams for app and bulk email, inbound email turned into JSON, templates, 45 days of message history and DMARC reports as an add-on from $14 a month. It covers the job; inbound needs Pro. | CSMTP and REST API, dedicated IP, DKIM, click and bounce tracking, archiving, DMARC reports and a template store. It covers the sending job, with extras charged on top. |
| Ease of use | CJudged on how fast a developer sends a first email: official SDKs, a sandbox mode, ready-made templates for resets and receipts, and migration guides. You'll still verify a domain first. No rating on record. | CNo store rating on record. You configure sending domains and DNS before it works. |
| Platforms and integrations | BWeb, with an API and SMTP, plus Zapier, WordPress, Stripe, Slack, Supabase, Bubble, Netlify and Datadog. No desktop or phone app, so B is the top. | CWeb dashboard with SMTP and a REST API. No integrations list on its pages. |
| Best for | app email kept apart from marketing sends | Dutch-hosted transactional email on a dedicated IP |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Postmark and SMTPeter. How we grade
Price against what you get
Postmark starts at $15 a month and scores 2.7 out of 4 on features, ease of use and platforms. SMTPeter starts at about $61.45 a month and scores 2.0.
Postmark scores higher and starts $46.45 a month lower. Of the other email sending services on the chart, none scores higher than Postmark for less, and 28 score higher than SMTPeter for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- SMTPeter also covers templates.
At a glance
| Postmark | SMTPeter | |
|---|---|---|
| Pricing | Free plan | Paid |
| Starts at | $15 per month for 10,000 emails | €55 per month for up to 25,000 emails |
| Free plan | Free developer plan: 100 emails a month with no expiry and no overages, for testing an integration or a small side project. No credit card needed. | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | ActiveCampaign, LLC | Copernica |
| Price read from | postmarkapp.com | smtpeter.com |
| Checked | Oct 18, 2026 | Nov 13, 2026 |
Worth knowing
Postmark
- There is no tier between the free 100 emails a month and the 10,000-email paid plans.
- Billing is monthly only; the FAQ says annual plans are not offered yet.
- Basic has no inbound email processing and caps users at 4 and sending domains at 5.
- Dedicated IPs start at $50 a month per IP, need Pro or higher and 300,000 emails a month or more.
SMTPeter
- There is no free plan or trial on the pricing section.
- Prices are in euros; the page does not say whether VAT is included.
- Extra IPs or sender domains cost more, and more than five domains requires contacting the vendor.
- A technical support contract is sold separately at €89 a month.
Key features
Postmark
- Email API and SMTP
- Send through a REST API with official SDKs or through SMTP, with batch sending, a sandbox mode and migration guides from other providers.
- Message streams
- Transactional and bulk or broadcast email run on separate sending infrastructure, so marketing sends do not affect password resets and receipts.
- Inbound email processing
- Pro and Platform turn incoming email into a JSON object and post it to a webhook URL your app handles.
- Templates
- Responsive templates for welcome emails, password resets and receipts, with a template editor and import tool.
- Message history and analytics
- 45 days of full message content by default, adjustable from 7 to 365 days, with bounce details, open and link tracking and a stats API.
- DMARC monitoring
- DMARC Digests reports show authentication problems and who is sending with your domain, sold as an add-on from $14 a month per domain.
SMTPeter
- SMTP and REST API
- Messages arrive over SMTP or a REST API, and the API also returns log files, statistics and archived messages.
- Dedicated IP and Dutch hosting
- The license includes one IP address, and the vendor says the infrastructure is hosted in the Netherlands.
- Authentication and tracking
- DKIM signing is available, along with SPF and DMARC support, link rewriting for click tracking and bounce interception.
- Template store and editors
- Templates are stored as JSON, editable in a drag-and-drop editor or an HTML editor, and selected through the API for personalized sends.
- Archiving and DMARC reports
- Every sent email is archived and viewable in the dashboard or API, which also shows DMARC reports and feedback-loop notifications.
Plans
Postmark
Free$0
100 emails a month, never expires; extra emails cannot be bought on this plan.
Basic$15
per month for 10,000 emails
5 sending domains, 4 users, 45 days of history, no inbound email. Extra emails $1.80 per 1,000; $55 a month at 50,000 emails.
Pro$16.50
per month for 10,000 emails
10 domains, 6 users, inbound email, retention up to 365 days. Extra emails $1.30 per 1,000; $60.50 a month at 50,000 emails.
Platform$18
per month for 10,000 emails
Unlimited domains, servers, streams and users, with inbound email. Extra emails $1.20 per 1,000; $66 a month at 50,000 emails.
High volumeCustom
Custom pricing for large senders, arranged through sales.
SMTPeter
SMTPeter license€55
per month for up to 25,000 emails, 1 IP address and 1 sender domain
Beyond 25,000 emails: €0.23 per 1,000 for the next 25,000, then €0.22, €0.17, €0.06 and €0.05 as volume rises. Extra IPs or domains are charged extra.
Ways to pay less
Postmark
- Startups
$75 credit for bootstrapped companies
Companies that have launched, are charging for their product and have taken no outside investment can ask support for $75 of account credit.
SMTPeter
No public discounts listed.
Common questions
Which is cheaper, Postmark or SMTPeter?
As of Nov 13, 2026, Postmark is cheaper to start with: $15 a month, against about $61.45 a month for SMTPeter. Postmark starts at $15 per month for 10,000 emails, and SMTPeter starts at €55 per month for up to 25,000 emails.
Which has a free plan, Postmark or SMTPeter?
As of Nov 13, 2026, only Postmark has a free plan. SMTPeter does not.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.