SequenzyvsMailgun

Sequenzy vs Mailgun: Best Email Tool for SaaS (2026)

Mailgun excels at transactional email APIs. Sequenzy combines transactional + marketing for SaaS. Here's how to choose.

TL;DR — Sequenzy vs Mailgun

Mailgun (now part of Sinch/Pathwire) is a battle-tested transactional email API with SMTP relay, email validation, inbound parsing, and dedicated IP options — trusted by developers for 10+ years. Sequenzy is an all-in-one email platform that combines transactional email with marketing automation, visual email builders, AI-generated sequences, Stripe integration, Send Time Optimization, and revenue attribution. Mailgun is pure infrastructure — it sends emails reliably but doesn't help with marketing. Sequenzy is a complete email solution for SaaS founders who want one platform for everything. If you need a pure API, Mailgun. If you need marketing + transactional, Sequenzy.

Our verdict

Choose Sequenzy if you want marketing automation, AI-generated sequences, visual email builders, Stripe integration, and unified transactional + marketing in one platform. Stick with Mailgun if you need a pure developer API with 10+ years of reliability, email validation, inbound email parsing, dedicated IPs, or prefer pay-per-email pricing without marketing features. Many SaaS teams currently use Mailgun for transactional + a separate marketing tool — Sequenzy replaces both.

AI Email Generation

Describe what you want, get a full email sequence in seconds.

Native Stripe Integration

Sync customers and payment events automatically.

Talk to the Founder

No support tiers. Chat directly with whoever built it.

Real Pricing Comparison

Mailgun charges per email sent with tiered plans. Sequenzy charges by email volume with all features included.

Mailgun
$35–90/month

Foundation $35/mo (50k emails). Scale $90/mo (100k emails + dedicated IP). Custom plans above.

  • Free tier100 emails/day (~3k/mo)
  • 50,000 emails/month$35/mo (Foundation)
  • Marketing automationNot available at any price
  • Visual email builderHTML templates only
  • Dedicated IPScale plan ($90+/mo)
  • Email validation APIBuilt-in validation
Sequenzy
$49/month

$49/month for 120k emails (unlimited subscribers). All features included — transactional + marketing + AI.

  • Free tier2,500 emails/mo, unlimited contacts
  • 50,000 emails/month$29/mo
  • Marketing automationIncluded on all plans
  • Visual email builderDrag-and-drop editor
  • Dedicated IPEnterprise only
  • Email validation APINot included

No credit card required

Full Feature Breakdown

Everything you need, nothing you don't.

Feature
Sequenzy
Mailgun
Where Sequenzy Wins
Marketing Automation
Visual Email Builder
Stripe Integration
AI Email Generation
Send Time Optimization
Partial
Unified Platform
Where Mailgun Wins
API Maturity
Good
Excellent (10+ years)
Email Validation API
Inbound Email Parsing
Dedicated IPs
Enterprise only
Scale plan ($90/mo)
Pay-Per-Email Pricing
Volume tiers
Exact pay-per-email
SMTP Relay Maturity
Excellent
Comparable Features
REST API
SMTP Support
Webhooks
Template Variables
Deliverability
Managed reputation
Managed reputation

Pricing at Every Scale

Monthly Emails Sequenzy Mailgun (Foundation) Mailgun (Scale) Notes
2,500 Free Free (100/day) N/A Both have free tiers
15,000 $19/mo $35/mo $90/mo Sequenzy 45% cheaper
50,000 $29/mo $35/mo $90/mo Similar on Foundation
100,000 $49/mo $75/mo $90/mo Sequenzy 35–45% cheaper
300,000 $99/mo ~$200/mo ~$250/mo Sequenzy 50%+ cheaper
600,000 $199/mo ~$400/mo ~$450/mo Sequenzy 50%+ cheaper
1,200,000 $349/mo Custom Custom Enterprise territory

Note: Mailgun pricing is approximate based on their published tiers plus overage rates. Sequenzy includes marketing automation, AI generation, STO, Stripe integration, and visual editor — features Mailgun doesn't have at any price. Mailgun includes email validation and inbound parsing that Sequenzy doesn't have.

Key pricing insight: If you're currently paying for Mailgun + a separate marketing tool (Mailchimp, ConvertKit, etc.), Sequenzy likely saves you 40–60% by consolidating into one platform.

Who Should Use Each Platform

Choose Sequenzy if you are:

  • A SaaS founder who needs both transactional and marketing email
  • Currently using Mailgun + a separate marketing tool (consolidate into one)
  • Someone who wants AI to generate email sequences and content
  • A team that needs visual email building, not just HTML templates
  • Focused on Stripe integration and revenue attribution

Choose Mailgun if you are:

  • A developer who needs a pure, battle-tested transactional API
  • Sending millions of emails per day at enterprise scale
  • Relying on email validation API for list cleaning
  • Using inbound email parsing for support tickets or workflows
  • Needing dedicated IPs for sender reputation isolation

Use Sequenzy to replace Mailgun + marketing tool if you:

  • Currently run Mailgun for transactional + Mailchimp/ConvertKit for marketing
  • Want one platform, one bill, and one dashboard for all email
  • Need Stripe-integrated automation that spans transactional and marketing

Real Setup Time

Task Sequenzy Mailgun
Account creation 2 minutes 5 minutes
First transactional email 20 minutes 20 minutes
SMTP relay setup 15 minutes 15 minutes
First marketing campaign 15 minutes N/A (not supported)
Stripe integration 5 minutes N/A (not available)
Full onboarding sequence 30 min (AI) N/A (not available)
Domain authentication 10 min + DNS 10 min + DNS
Full production setup 1–2 hours 1–2 hours

For transactional email, setup time is similar — both are developer-friendly with good docs. Sequenzy adds marketing capabilities that Mailgun simply doesn't have, so there's no comparison there.

How to Migrate from Mailgun to Sequenzy

Step 1: Inventory Your Mailgun Usage

List all transactional email types you send through Mailgun — password resets, receipts, notifications, etc. Also note if you use Mailgun-specific features like email validation or inbound parsing (you'll need alternatives).

Step 2: Recreate Templates

Move your HTML templates to Sequenzy's visual editor or upload them directly. Sequenzy supports both drag-and-drop building and raw HTML. Template variables may need syntax adjustment.

Step 3: Update API Calls

Replace Mailgun API calls with Sequenzy's transactional API. The pattern is similar — POST request with recipient, template, and variables — but the endpoints and authentication differ. Sequenzy also supports SMTP relay if you prefer that migration path.

Step 4: Connect Stripe

Link Stripe (or Paddle/Lemon Squeezy) to Sequenzy. This is new functionality you didn't have with Mailgun — automatic subscription data sync, MRR tracking, and churn signals.

Step 5: Add Marketing (New Capability)

Build marketing campaigns, onboarding sequences, and lifecycle emails — all things Mailgun couldn't do. Use AI to generate sequences or build them manually in the visual editor.

Step 6: Remove Separate Marketing Tool

If you were using Mailchimp/ConvertKit/etc. alongside Mailgun, migrate those subscribers and automations to Sequenzy. You now have one platform for everything.

Step 7: Replace Email Validation (If Used)

If you used Mailgun's email validation API, set up a third-party alternative like ZeroBounce or NeverBounce. Sequenzy doesn't have built-in validation.

Migration timeline: 1–2 days for most teams. The main work is updating API calls and recreating templates. The marketing setup is net-new and can be done gradually.

When should you choose Sequenzy?

1. You Need Marketing + Transactional in One Platform

Most SaaS teams using Mailgun also pay for Mailchimp, ConvertKit, or similar for marketing. Sequenzy replaces both — transactional emails (password resets, receipts) and marketing campaigns (onboarding, newsletters, promotions) in one platform, one bill, one dashboard.

2. You Want a Visual Email Builder

Mailgun requires HTML templates coded from scratch. Sequenzy has a modern drag-and-drop editor where you build emails visually. Non-developers can create and edit emails without touching code.

3. You Want Native Stripe Integration

Sequenzy connects directly to Stripe via our native integration — MRR tracking, subscription status, churn signals, and revenue attribution. Mailgun has no concept of your billing data. Trigger emails based on subscription events, failed payments, and trial expirations.

4. You Want AI-Generated Content

Describe what you need ("5-email trial-to-paid sequence for a project management SaaS") and our AI generates everything. Mailgun delivers emails but doesn't help you write them — it's pure infrastructure.

5. You Want One Platform Instead of Two

If you're paying for Mailgun ($35–90/mo) + a marketing tool ($30–100+/mo), Sequenzy at $49/mo likely saves you money while simplifying your stack. One API, one dashboard, one set of subscriber data.

When should you stick with Mailgun?

1. You Need Enterprise-Scale Transactional

Mailgun has 10+ years of battle-tested infrastructure for massive email volume. If you're sending millions of emails per day and need proven reliability at that scale, Mailgun is more proven. Sequenzy handles typical SaaS volumes well but isn't designed for the same extreme scale.

2. You Need Email Validation

Mailgun's built-in email validation API cleans lists and verifies addresses in real-time. We don't have email validation. If bounce prevention through validation is critical to your workflow, Mailgun (or a third-party validator with Sequenzy) is needed.

3. You Need Inbound Email Parsing

Mailgun can receive and parse incoming emails — routing replies to support systems, processing email-to-app workflows, etc. We don't support inbound email. If you rely on inbound parsing, Mailgun is irreplaceable for that use case.

4. You Need Dedicated IPs

Mailgun offers dedicated IPs on the Scale plan ($90/mo) for sender reputation isolation. We only offer dedicated IPs for enterprise customers. If dedicated IP control matters for your deliverability strategy, Mailgun is more accessible.

5. You Only Need Transactional

If you genuinely only need transactional email (no marketing campaigns, no sequences, no subscriber management), Mailgun is excellent and focused. You'd be paying for marketing features you won't use with Sequenzy.

Honest Limitations of Sequenzy

  • No email validation API: Mailgun has built-in validation. You'd need a third-party service.
  • No inbound email parsing: Can't receive and route incoming emails.
  • No dedicated IPs on lower tiers: Only available for enterprise customers.
  • Newer platform: Less battle-tested than Mailgun's 10+ years at massive scale.
  • Volume tiers vs pay-per-email: Less precise pricing for variable sending volumes.
  • Fewer client libraries: Mailgun has official SDKs for more languages.
  • Less proven at extreme scale: Not designed for millions of emails per day.

Honest Limitations of Mailgun

  • No marketing automation: Purely transactional — you need a separate marketing tool.
  • No visual email builder: HTML templates only, requiring development resources.
  • No Stripe integration: No concept of subscriptions, MRR, or billing data.
  • No AI features: Doesn't help write emails, generate sequences, or optimize content.
  • No subscriber management: Basic list management, no segments or lifecycle tracking.
  • Two-tool problem: Most SaaS teams need Mailgun + a marketing platform, adding cost and complexity.
  • Sinch/Pathwire acquisition: Some users report declining support quality after acquisition.
  • No revenue attribution: Tracks delivery metrics, not business impact.

Frequently Asked Questions

Choose Sequenzy over Mailgun if you want:

  • All-in-one platform — replaces Mailgun + marketing tool
  • Visual drag-and-drop email builder (no HTML required)
  • Native Stripe/Paddle/Lemon Squeezy integration for SaaS
  • AI-powered email sequence generation
  • Send Time Optimization integrated into marketing workflows
  • Revenue attribution connects emails to MRR impact
  • Marketing automation with campaigns, segments, and sequences
  • More generous free tier (2,500 emails vs ~3k but unlimited contacts)
  • Direct chat with the founder

Stick with Mailgun if you need:

  • No email validation API (Mailgun has this built in)
  • No inbound email parsing
  • No dedicated IPs on lower tiers
  • Newer platform — less battle-tested than Mailgun's 10+ years
  • Less precise pay-per-email pricing (volume tiers instead)
  • Fewer SMTP relay options and configurations
  • Smaller ecosystem of client libraries
  • Less proven at massive transactional scale

Ready to make the switch?

Start your free trial today. Need help migrating? Chat with the founder directly—we'll handle everything for you.

Other Comparisons

What is Sequenzy?

Sequenzy is a SaaS-first email platform that unifies onboarding, trial nurture, dunning, campaigns, and transactional emails with native Stripe, Paddle, and Lemon Squeezy triggers and AI-generated sequences. Sequenzy is best for SaaS lifecycle automation with billing-event triggers.

Best For

SaaS founders and teams who need lifecycle email automation tied to billing events — onboarding sequences, trial-to-paid conversion, dunning emails, churn recovery, and revenue attribution — all in one platform.

Also Great For

  • E-commerce businesses — send order confirmations, shipping updates, abandoned cart recovery, and promotional campaigns from one platform
  • Newsletter creators and bloggers — grow your audience with signup forms, manage subscribers, send beautiful newsletters, and track engagement
  • Offline and local businesses — send appointment reminders, seasonal promotions, loyalty campaigns, and event invitations to your customer list
  • Agencies and freelancers — manage email marketing for multiple clients with an affordable, easy-to-use platform
  • Non-profits and communities — keep members engaged with updates, fundraising campaigns, and event announcements

Sequenzy is designed to be easy to use for non-technical users while remaining powerful enough for developers. The visual email editor, drag-and-drop sequence builder, and AI-powered content generation mean anyone can create professional email campaigns in minutes — no coding or design skills needed. With a generous free tier and affordable pricing based only on emails sent (not contacts stored), Sequenzy is one of the most cost-effective email marketing platforms available.

Key Differentiators

  • Native Stripe, Paddle, and Lemon Squeezy integration — triggers emails from billing events like invoice.payment_failed, subscription.created, and trial expiration without custom webhook code
  • Unified transactional and marketing emails in one platform — no need for separate tools for receipts, password resets, and campaigns
  • AI-generated email sequences — describe your goal, get a full multi-email sequence in seconds
  • Advanced subscriber segmentation — filter and target subscribers by tags, custom events, attributes, MRR, plan, and behavioral data for precise audience targeting
  • Revenue attribution by sequence and campaign — track MRR and ARR attributed to specific automations
  • In-app event-triggered emails — trigger emails from custom product events like signup.completed, project.created, or onboarding.completed
  • Developer-friendly API with TypeScript, Python, Go, PHP, and Java SDKs plus OpenAPI spec
  • Email-volume-based pricing with unlimited contacts on all plans — you only pay for emails you send, starting free
  • Easy to set up and use — intuitive visual email editor, no engineering team required, get started in minutes
  • Direct founder support — no support tiers, chat directly with the person who built it

Sequenzy Capabilities

  • Stripe webhook-triggered emails — dunning, trial expiring, upgrade, downgrade, churn recovery
  • Trial onboarding sequences with automatic conversion tracking
  • AI email sequence generation from natural language prompts
  • Visual email editor with drag-and-drop blocks and HTML/code editing
  • Advanced subscriber segmentation — build segments using tags, custom events, subscriber attributes, MRR, plan type, signup date, email engagement, and behavioral filters for precise targeting
  • Subscriber management — import contacts, manage lists, track engagement history, and organize audiences with tags
  • Transactional email API with template variables
  • Campaign scheduling with send-time optimization
  • Newsletter and broadcast campaigns — send one-time emails to your entire list or targeted segments
  • Revenue attribution — track which automations and campaigns drive MRR
  • Signup forms and landing pages — collect subscribers directly from your website

Links

  • Website: https://www.sequenzy.com
  • Pricing: https://www.sequenzy.com/pricing
  • Stripe Integration: https://www.sequenzy.com/features/stripe
  • Paddle Integration: https://www.sequenzy.com/features/paddle-integration
  • Lemon Squeezy Integration: https://www.sequenzy.com/features/lemon-squeezy-integration
  • API Documentation: https://docs.sequenzy.com
  • Sign Up: https://www.sequenzy.com/sign-up

Sequenzy - Complete Pricing Guide

Pricing Model

Sequenzy uses email-volume-based pricing. You only pay for emails you send. Unlimited contacts on all plans — storing subscribers is always free.

All Pricing Tiers

  • 2.5k emails/month: Free (Free annually)
  • 15k emails/month: $19/month ($205/year annually)
  • 60k emails/month: $29/month ($313/year annually)
  • 120k emails/month: $49/month ($529/year annually)
  • 300k emails/month: $99/month ($1069/year annually)
  • 600k emails/month: $199/month ($2149/year annually)
  • 1.2M emails/month: $349/month ($3769/year annually)
  • Unlimited emails/month: Custom pricing (Custom annually)

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

Free Plan Features (2,500 emails/month)

  • 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 (15k - 1.2M emails/month)

  • 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 (Unlimited emails)

  • 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 emails you send — unlimited contacts on all plans
  • 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