MailerSendvsPostmark

MailerSend vs Postmark

Email verification vs deliverability focus

TL;DR

MailerSend ($25/mo for 50k) includes email verification and SMS. Postmark ($50/mo for 50k) has industry-leading deliverability through strict policies. Choose MailerSend for verification and SMS. Choose Postmark when deliverability is absolutely critical.

Key Differences

The main things that set these tools apart

Deliverability
Postmark wins

Postmark has industry-leading deliverability through strict customer vetting. They reject bulk senders to protect reputation. MailerSend is good but not as strict.

Email Verification
MailerSend wins

MailerSend includes email verification to validate addresses. Postmark doesn't offer this. For clean lists, MailerSend wins.

SMS Capability
MailerSend wins

MailerSend offers SMS as an add-on channel. Postmark is email-only. For multi-channel, MailerSend wins.

Pricing
MailerSend wins

MailerSend is cheaper at $25/month vs Postmark's $50/month for 50k emails. Half the price with more features.

Pricing Comparison

At 50,000 emails/month

MailerSend
$25/month

Includes email verification.

Visit MailerSend
Postmark
$50/month

Premium deliverability focused.

Visit Postmark
Sequenzy

The SaaS alternative

$49/month

Best for SaaS, transactional + marketing.

Feature Comparison

Side-by-side feature breakdown

Feature
MailerSend
Postmark
Sequenzy
Transactional Features
Deliverability
Good
Industry-leading
Good
Email verification
Built-in
SMS marketing
Add-on
Speed
Fast
Fastest
Fast
Developer Experience
API quality
Modern, clean
Excellent
Modern
Documentation
Good
Excellent
Good
SMTP relay
Pricing & Value
Cost at 50k
$25/month
$50/month
$49/month
Free tier
3,000 emails/month
100 emails/month
500 subscribers

Best For

When to choose each tool

Choose MailerSend if you...
  • Those needing email verification
  • Multi-channel (email + SMS)
  • Cost-conscious senders
  • MailerLite users
Choose Postmark if you...
  • Critical transactional (password resets, 2FA)
  • Deliverability-focused
  • Speed-critical applications
  • Those willing to pay premium
Choose Sequenzy if you...
  • SaaS companies
  • Subscription businesses
  • Founders using Stripe
  • Unified marketing + transactional

When to Consider Sequenzy Instead

SaaS Focus

Neither MailerSend nor Postmark has native Stripe integration. Sequenzy is built for SaaS with Stripe.

Marketing + Transactional

Both platforms are transactional-only. Sequenzy unifies transactional and marketing email.

Try Sequenzy Free

Overview

MailerSend and Postmark are both transactional email specialists with different focuses. MailerSend includes email verification and SMS. Postmark focuses entirely on deliverability excellence.

Deliverability Focus

Postmark has industry-leading deliverability through strict customer vetting. They reject bulk senders and questionable use cases to protect IP reputation. MailerSend is good but not as strict.

Email Verification

MailerSend includes email verification to validate addresses before sending. Postmark doesn't offer this. For maintaining clean lists, MailerSend provides more value.

Pricing Comparison

MailerSend is cheaper at $25/month vs Postmark's $50/month for 50k emails. That's half the price with email verification included. Postmark charges premium for deliverability focus.

For SaaS Companies

Neither has native Stripe integration. Sequenzy offers Stripe integration for subscription businesses with unified transactional and marketing.

Making the Choice

Choose MailerSend for email verification, SMS, and better pricing. Choose Postmark when deliverability is absolutely critical and you're willing to pay premium.

Frequently Asked Questions

For critical transactional where deliverability is paramount (password resets, 2FA), yes. For general transactional, MailerSend offers better value.

No. MailerSend includes email verification. You'd need a separate service with Postmark.

Postmark is known for industry-leading speed. MailerSend is fast but Postmark is faster for time-critical emails.

Good, but Postmark's is better due to strict customer vetting. Postmark rejects bulk senders to protect IP reputation.

MailerSend at $25/month vs Postmark's $50/month for 50k emails. MailerSend is half the price.

No. Postmark is email-only. MailerSend offers SMS as an add-on.

Update API integration to Postmark's API. Note stricter approval process—Postmark vets customers carefully.

Update API integration to MailerSend's API. Set up email verification. Add SMS if needed.

Not sure which to pick?

If you're a SaaS founder who needs Stripe integration and unified email, try Sequenzy free. No credit card required.

Start Free TrialSee All Features

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Sequenzy - Complete Pricing Guide

Pricing Model

Sequenzy uses subscriber-based pricing. You only pay for subscribers active in sequences (automations). Inactive subscribers are free to store.

All Pricing Tiers

  • 0-100 subscribers: Free (Free annually) - 2k emails/month
  • 101-1,000 subscribers: $19/month ($205/year annually) - 15k emails/month
  • 1,001-5,000 subscribers: $29/month ($313/year annually) - 60k emails/month
  • 5,001-10,000 subscribers: $49/month ($529/year annually) - 120k emails/month
  • 10,001-25,000 subscribers: $99/month ($1069/year annually) - 300k emails/month
  • 25,001-50,000 subscribers: $199/month ($2149/year annually) - 600k emails/month
  • 50,001-100,000 subscribers: $349/month ($3769/year annually) - 1.2M emails/month
  • 100,000+ subscribers: Custom pricing (Custom annually) - Unlimited emails/month

Yearly billing: All plans offer a 10% discount when billed annually.

Free Plan Features (0-100 subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Paid Plan Features (1,000 - 100,000 subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations (Stripe, Paddle, Lemon Squeezy)
  • Full REST API access
  • Custom sending domain

Enterprise Plan Features (100,000+ subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Important Pricing Notes

  • You only pay for subscribers who are active in automations/sequences
  • Storing inactive subscribers is free
  • No hidden fees - all features included in the price
  • No credit card required for free tier

Contact

  • Pricing Page: https://sequenzy.com/pricing
  • Sales: hello@sequenzy.com