MailerLite vs Postmark Comparison
Compare MailerLite vs Postmark features, pricing, and more.
Last updated: November 2026
MailerLite
7.1/10
MailerLite is an email marketing platform for small businesses and creators, combining newsletters, automations, landing pages, sites, forms and digital product sales.
Postmark
6.1/10
Postmark is an email delivery API and SMTP service, owned by ActiveCampaign, that sends transactional and broadcast email for software products and web apps.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7.1/10 | 6.1/10 |
| Analytics | 6/10 | 6/10 |
| Cost | 8/10 | 6/10 |
| Customization | 7/10 | 5/10 |
| Ease of Use | 9/10 | 7/10 |
| Integration | 7/10 | 6/10 |
| Scalability | 6/10 | 7/10 |
| Security | 6/10 | 6/10 |
| Support | 5/10 | 6/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $12/mo Comfort | $15/mo Basic |
| Estimated cost for 10 users | $25/mo Power | Free Free |
| Features | ||
| A/B Testing | ||
| Landing Pages | ||
| Segmentation | ||
| Email Marketing | ||
| E-commerce Features | Not listed | |
| SMS Marketing | Not listed | |
| Webinars | Not listed | |
MailerLite vs Postmark cost by team size
MailerLite and Postmark cost the same at 1 user; Postmark costs less from 5 users.
| Team size | MailerLite | Postmark |
|---|---|---|
| 1 user | FreeFree | FreeFree |
| 5 users | $25/moPower | FreeFree |
| 10 users | $25/moPower | FreeFree |
| 25 users | $25/moPower | FreeFree |
| 50 users | $25/moPower | FreeFree |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose MailerLite
- Higher Cost score (8/10 vs 6/10)
- Higher Customization score (7/10 vs 5/10)
- Better fit for marketing teams (6/10 vs 2/10)
- Better fit for freelancers (8/10 vs 5/10)
- Includes A/B Testing, which Postmark lacks
Why choose Postmark
- Lower estimated cost for 10 users: Free vs $25/mo
- Higher Scalability score (7/10 vs 6/10)
- Higher Support score (6/10 vs 5/10)
- Better fit for enterprise (6/10 vs 4/10)
Pros & Cons
MailerLite
Pros
- The interface is clean, and reviewers say automations are quick to set up even for first-time users.
- Automations are included even on the free plan.
- Paid plans start at $12 a month, which reviewers say is cheaper than Mailchimp or Constant Contact.
- Native e-commerce integrations with Shopify, WooCommerce and Stripe feed purchase-based automations.
- Reviewers report deliverability ranking first in an independent EmailToolTester test.
Cons
- Many users report accounts suspended or terminated with little warning and difficult appeals.
- Support is email-only on Comfort, and some reviewers say replies are slow.
- The free plan has been cut more than once and now allows only 250 subscribers.
- Prices rise steeply as the list grows, according to a competitor's analysis.
- Reviewers find reporting and segmentation limited for larger companies.
Postmark
Pros
- Separate transactional and broadcast streams run on separate IPs, which protects deliverability for critical app email.
- A free plan of 100 emails a month never expires, so developers can test the integration at no cost.
- Clear volume pricing with no fees for broadcast messages; the Platform plan adds unlimited domains, users and servers for $18 a month.
- Offers both a REST API and SMTP, plus inbound email processing on the Pro plan and above.
- Many Capterra reviewers praise its speed and deliverability, with a 4.7 rating.
Cons
- Not a marketing platform: it has no list uploads, visual editor or campaign reporting.
- Billed monthly only, with no PayPal or purchase order payments.
- Some reviewers report slow support and accounts paused during approval reviews since the ActiveCampaign acquisition.
- Per-email costs are higher than bulk services such as Amazon SES at high volumes.
- Nothing sits between the 100-email free plan and the 10,000-email paid plans.
Not sold on either?
Frequently Asked Questions
MailerLite scores higher on our Marketing criteria: 7.1/10 against 6.1/10 for Postmark. The largest gap is in Cost: 8/10 for MailerLite and 6/10 for Postmark.
Postmark costs less for 10 users: free on its Free plan, against about $25/mo on its Power plan for MailerLite, billed monthly.
Yes, both MailerLite and Postmark have a free plan.
MailerLite is the better fit for marketing teams: we rate it 6/10 for them, against 2/10 for Postmark.
MailerLite has A/B Testing, Landing Pages and Segmentation, which Postmark lacks.
