MailerSend vs Selzy: Complete Comparison (2026)
An in-depth comparison of MailerSend and Selzy to help you choose the right tool for your business.
Last updated: November 2026
MailerSend
6.9/10
MailerSend is a transactional email and SMS API with SMTP relay and a template builder, aimed at developers and businesses sending app-triggered messages.
Selzy
6.3/10
Selzy is an email marketing platform for small businesses and beginners, with a drag-and-drop builder, automation, segmentation, A/B testing, and SMS and landing page add-ons.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.9/10 | 6.3/10 |
| Analytics | 6/10 | 5/10 |
| Cost | 7/10 | 8/10 |
| Customization | 6/10 | 6/10 |
| Ease of Use | 8/10 | 8/10 |
| Integration | 7/10 | 4/10 |
| Scalability | 7/10 | 6/10 |
| Security | 6/10 | 5/10 |
| Support | 8/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $7/mo Hobby | Contact for pricing |
| Estimated cost for 10 users | $110/mo Professional | Contact for pricing |
| Features | ||
| Email Marketing | ||
| A/B Testing | Not listed | |
| Landing Pages | Not listed | |
| Segmentation | Not listed | |
| SMS Marketing | Not listed | |
MailerSend vs Selzy cost by team size
MailerSend and Selzy cost the same at 1 user.
| Team size | MailerSend | Selzy |
|---|---|---|
| 1 user | FreeFree | FreeFree |
| 5 users | $7/moHobby | Contact for pricing |
| 10 users | $110/moProfessional | Contact for pricing |
| 25 users | $110/moProfessional | Contact for pricing |
| 50 users | $110/moProfessional | Contact for pricing |
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 MailerSend
- Higher Integration score (7/10 vs 4/10)
- Higher Analytics score (6/10 vs 5/10)
- Better fit for agencies (7/10 vs 4/10)
- Better fit for enterprise (6/10 vs 4/10)
Why choose Selzy
- Higher Cost score (8/10 vs 7/10)
- Better fit for freelancers (8/10 vs 6/10)
- Better fit for marketing teams (6/10 vs 4/10)
Pros & Cons
MailerSend
Pros
- Developers can send through a REST API or an SMTP relay, with SDKs and connectors for Laravel, Django, Rails, Symfony, Supabase and Firebase.
- A free tier of 500 emails and a $7 Hobby plan make it cheap to start.
- Capterra reviewers repeatedly praise its responsive support and clear documentation.
- Built-in blocklist and DMARC monitoring help teams protect deliverability.
- Starter and higher plans add an SMS API, and a WhatsApp add-on is available.
Cons
- It is built for transactional email, not full marketing campaign management.
- Reviewers report sudden throttling or account suspensions after bounce or complaint thresholds are crossed.
- Free and Hobby plans keep only one day of activity history.
- SMS is limited to the USA and Canada.
Selzy
Pros
- The Free plan includes automation, forms, and analytics for up to 100 contacts.
- Every plan includes unlimited emails, with pricing based only on contact count.
- Prepaid email packages suit senders with irregular volumes.
- Capterra reviewers praise the drag-and-drop builder and the variety of templates.
- The built-in quality checker reviews spam risk, authentication, and subject lines before sending.
Cons
- Some reviewers mention limited integrations and reporting options.
- Some reviewers say the drag-and-drop editor occasionally misbehaves.
- The Free and Lite plans allow only one user.
- Integrations and dedicated IPs cost extra.
Not sold on either?
Frequently Asked Questions
MailerSend scores higher on our Marketing criteria: 6.9/10 against 6.3/10 for Selzy. The largest gap is in Integration: 7/10 for MailerSend and 4/10 for Selzy.
Yes, both MailerSend and Selzy have a free plan.
MailerSend is the better fit for agencies: we rate it 7/10 for them, against 4/10 for Selzy.
