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

Mailjet is a solid hybrid email platform owned by Sinch. Sequenzy is purpose-built for SaaS with Stripe integration and AI. Similar prices, different focus.

Free plan, paid from $19/mo for 15,000 emailsUnlimited contactsUpdated September 28, 2026

The short answer

Sequenzy vs Mailjet at a glance

Mailjet is a hybrid transactional + marketing email platform owned by Sinch (which also owns Mailgun). Based in Paris, it offers affordable pricing, real-time team collaboration on templates, subaccounts for agencies, EU data hosting, and both API and marketing features. Sequenzy is purpose-built for SaaS with native Stripe/Paddle/Polar integration, AI email generation, Send Time Optimization, revenue attribution, and SaaS-specific automations. Both handle transactional + marketing email, but Sequenzy includes significantly more email volume per dollar and all features on every plan (Mailjet locks automation behind Premium). Mailjet wins on team collaboration, subaccounts, and EU compliance. Sequenzy wins on SaaS focus, AI, volume, and pricing simplicity.

Our verdict

Choose Sequenzy if you're a SaaS founder wanting Stripe integration, AI-generated sequences, Send Time Optimization, and trial/churn automations with far more email volume per dollar. Stick with Mailjet if you need real-time team collaboration on templates, subaccounts for managing multiple clients, EU data hosting for GDPR compliance, or SMS marketing through Sinch integration.

Where Sequenzy has the edge

  • Purpose-built for SaaS with Stripe/Paddle/Polar integration
  • AI generates entire email sequences and subject lines
  • Cheaper at entry volume with automation included ($19 vs $27 for 15k emails)
  • All features included on every plan (no Essential/Premium split)
  • Send Time Optimization for better open rates
  • Revenue attribution connects emails to MRR impact
  • SaaS-specific automations (trial, churn, upgrade)
  • Unified transactional + marketing with simple pricing
  • Direct chat with the founder

Where Mailjet has the edge

  • No real-time team collaboration on templates
  • No subaccounts for agencies
  • SMS is a newer paid add-on
  • US-based data hosting (not EU)
  • Less generous free tier (2,500 vs 6,000 emails)
  • Newer platform with less track record than Mailjet's 10+ years
  • Smaller ecosystem of integrations

Pricing

Real Pricing Comparison

Both charge per email volume. Sequenzy includes all features on every plan. Mailjet locks key features (automation, A/B testing) behind the Premium tier.

Sequenzy

Unlimited contacts

$19/month

15,000 emails/month, all features included

Or start free with 2,500 emails/month.

Sending more?

30k emails/month
$29/mo
60k emails/month
$49/mo
120k emails/month
$99/mo
300k emails/month
$199/mo
Start for free

No credit card required. See all plans

Mailjet

$17–27/month

Essential $17/mo for 15k emails (no automation). Premium $27/mo for 15k emails (with automation). Higher tiers available.

Based on Mailjet's public pricing. Check their site for current plans and add-ons.

IncludedSequenzyMailjet
15,000 emails/month$19/mo (all features)$17/mo Essential (no automation)
15,000 emails + automation$19/mo$27/mo (Premium required)
Free tier2,500 emails/mo, unlimited contacts6,000 emails/mo (200/day limit)
AI email generationFull sequence generationNo AI features
Stripe integrationNative sync with MRR/churnVia Zapier only
SubaccountsNot availableUp to 20 (Premium)

Features

Feature-by-feature comparison

Where Sequenzy wins, where Mailjet wins, and where they are even.

FeatureSequenzyMailjet

Where Sequenzy Wins

SaaS Focus

Built specifically for SaaS with trial expiry, churn prevention, and MRR-based automations. Mailjet is a general-purpose email platform without SaaS-specific features.
Yes
Partial

AI Email Generation

Generate entire email sequences, subject lines, and content with AI. Mailjet has no AI content features - you write everything manually.
Yes
No

Stripe Integration

Native Stripe/Paddle/Polar sync with MRR tracking, subscription status, and churn signals. Mailjet only connects to Stripe via Zapier.
Yes
Partial

Email Volume Per Dollar

At entry volume Sequenzy is cheaper with automation included ($19 vs $27 for 15k emails). At higher volumes the prices are close.
60k emails at $49
15k emails at $27

Send Time Optimization

Sequenzy's STO analyzes engagement patterns and delivers emails at optimal times per subscriber. Mailjet sends at scheduled times.
Yes
No

Revenue Attribution

Track which emails drive MRR, upgrades, and churn prevention. Mailjet has basic email analytics but no revenue connection.
Yes
No

Where Mailjet Wins

Team Collaboration

Real-time collaboration on email templates - multiple team members editing simultaneously, like Google Docs for email. This is Mailjet's signature feature; we don't have it.
Partial
Yes

Subaccounts

Up to 20 subaccounts for agencies managing multiple clients. Each client gets isolated data. We don't offer subaccounts.
No
Yes

EU Data Hosting

Mailjet is Paris-based and hosts data in the EU. For strict GDPR data residency requirements, this matters. We're US-based.
US-based
EU-based (Paris)

Free Tier

Mailjet's free tier offers 6,000 emails/month (200/day limit). More generous for testing, though with daily caps.
2,500 emails/mo
6,000 emails/mo

SMS Marketing

Mailjet integrates with Sinch for SMS marketing. Sequenzy has a native SMS & MMS add-on for texts inside sequences and one-off sends.
Partial
Partial

Established Platform

Mailjet has been around since 2010 with established infrastructure and track record. We're newer.
Newer
10+ years

Comparable Features

SMTP Support

Both support SMTP relay for easy integration with existing systems.
Yes
Yes

Transactional API

Both have REST APIs for transactional email with template variables.
Yes
Yes

Marketing Automation

Both offer automation flows. Sequenzy includes on all plans; Mailjet requires Premium ($27+/mo).
full (all plans)
full (Premium only)

A/B Testing

Both support A/B testing. Sequenzy includes on all plans; Mailjet requires Premium.
full (all plans)
full (Premium only)

Segmentation

Both support audience segmentation with custom attributes.
Yes
Yes

API, CLI and MCP: How AI-Ready Is Each Tool?

What you, or an AI assistant like Claude or ChatGPT, can do in each tool without opening the dashboard. “MCP” means the vendor's own MCP server can do it. Each status links to the doc that confirms it.

Mailjet
MCP server
Official, read-onlyRuns locally

Mailjet (Sinch/Mailgun org) npx stdio server; source registers GET endpoints only. Writes need self-extension.

MCP docs
CLINoneAPIREST (also SMTP)
Through its MCP (2 of 14)

Read campaign analytics, View or manage unsubscribes

API only

Create and update contacts, Add contacts to lists or tags, Create segments, Create campaigns, Send or schedule campaigns, Create and edit templates, Send transactional email, Set up sending domains

Checked September 28, 2026
Sequenzy
MCP server
Official, read and writeHosted or local

250+ tools. Hosted with OAuth or local with an API key.

MCP docs
CLIOfficialAPIREST
Through its MCP (14 of 14)

Create and update contacts, Add contacts to lists or tags, Create segments, Create campaigns, Send or schedule campaigns, Build automations, Trigger automations, Create A/B tests, Create and edit templates, Send transactional email, Read campaign analytics, View or manage unsubscribes, Set up sending domains, Create forms or landing pages

Checked September 28, 2026

If You Leave Later: What You Can Take With You

Switching is easier when your data comes with you. Unsubscribes matter most: without them, people who opted out get emailed again.

Mailjet
Contacts and custom fields
Yes

Open contact list > Export list > CSV or tab-delimited

Mailjet docs
Unsubscribes and bounces
Yes

API: listrecipient filtered by Unsub, contact IsExcludedFromCampaigns; UI export not confirmed

Mailjet docs
Templates as HTML
Yes

Template Gallery > Options > Download as HTML or MJML

Mailjet docs
Automations
Not confirmed

No workflow export documented.

Open and click history
Yes

API messagehistory and message endpoints per contact; campaign stats CSV download

Sequenzy
Contacts and custom fields
Yes

Subscribers > Export downloads a CSV with status, tags and custom attributes, or page through GET /subscribers

Sequenzy docs
Unsubscribes and bounces
Yes

Unsubscribed and bounced contacts carry their status in the CSV export, and GET /suppressions lists them

Sequenzy docs
Templates as HTML
Yes

GET /templates/{id}/render returns the exact email-safe HTML that is sent

Sequenzy docs
Automations
Yes

GET /sequences/{id} returns each sequence's steps, delays and conditions as JSON; other tools cannot import it directly

Sequenzy docs
Open and click history
Yes, on request

Full per-contact open and click history is exported on request; opens and clicks also stream out through webhooks as they happen

Best Fit by Mailjet Use Case

Best Mailjet alternative for SaaS onboarding and billing automation: Sequenzy

Choose Sequenzy when Mailjet's hybrid transactional and marketing feature set is close, but the missing piece is subscription context. Sequenzy connects billing data from Stripe, Paddle, and Polar to lifecycle campaigns, so trial, upgrade, failed-payment, and churn emails are easier to build. Pair this comparison with the SaaS onboarding templates and dunning email templates.

Best Mailjet choice for EU teams and agencies: Mailjet

Stick with Mailjet when EU data residency, real-time template collaboration, or client subaccounts are the reason you are buying. Those are not side features; they are Mailjet's strongest advantages. Agencies should also compare Mailchimp, Brevo, and HubSpot before moving to a SaaS-focused product.

Best Mailjet alternative for higher-volume email on a simple plan: Sequenzy

Sequenzy is stronger when you want more email volume per dollar and do not want automation locked behind a higher plan. That matters for SaaS teams sending onboarding, product education, changelogs, and transactional messages from one account. The best transactional and marketing email platforms guide is the broader shortlist for this exact buying motion.

Best Mailjet alternative for founder-led teams that need content help: Sequenzy

Mailjet gives you editors and templates; Sequenzy adds AI-assisted sequence creation. If your bottleneck is writing trial emails, activation nudges, and lifecycle campaigns, Sequenzy is the better fit. Start with AI sequences, product launch templates, and the AI email marketing tools guide.

Pricing at Every Scale

Monthly Emails Sequenzy Mailjet (Essential) Mailjet (Premium) Notes
2,500 Free Free (200/day limit) N/A Both have free tiers
15,000 $19/mo $17/mo $27/mo Essential lacks automation
60,000 $49/mo ~$50/mo ~$65/mo About the same
120,000 $99/mo ~$95/mo ~$120/mo Sequenzy 4% more
300,000 $199/mo ~$200/mo ~$250/mo About the same
600,000 $399/mo ~$400/mo ~$450/mo About the same
1,200,000 $799/mo Custom Custom Enterprise territory

Note: Mailjet Essential lacks automation, A/B testing, and advanced features. Premium includes these but costs more. Sequenzy includes ALL features (AI, STO, Stripe, automation, A/B testing) on every plan.

Key pricing insight: Mailjet's Essential ($17/mo) looks cheaper but lacks automation and A/B testing. Once you add those on Premium ($27/mo), Sequenzy is cheaper at every volume tier - and includes AI, STO, and Stripe integration that Mailjet doesn't have at any price.

Who Should Use Each Platform

Choose Sequenzy if you are:

  • A SaaS founder who needs Stripe integration and revenue attribution
  • Someone who wants AI to generate email sequences and content
  • Sending moderate-to-high volume (Sequenzy's volume-per-dollar is much better)
  • A small team that wants all features without plan tier complexity
  • Focused on SaaS-specific automations (trial, churn, upgrade)

Choose Mailjet if you are:

  • A team that needs real-time collaboration on email templates
  • An agency managing multiple clients (subaccounts)
  • An EU-based company requiring EU data hosting for GDPR
  • Someone who needs email + SMS marketing in one platform
  • Looking for a lower entry price without automation needs ($17/mo Essential)

Either platform works if you:

  • Need both transactional and marketing email
  • Want SMTP relay alongside a REST API
  • Need basic segmentation and campaign analytics
  • Want an affordable alternative to SendGrid or Mailchimp

Real Setup Time

Task Sequenzy Mailjet
Account creation 2 minutes 5 minutes
First campaign sent 15 minutes 20 minutes
Stripe integration 5 minutes 30+ min (via Zapier)
Transactional email via API 20 minutes 20 minutes
Full onboarding sequence 30 min (AI) 2–3 hours (manual)
Domain authentication 10 min + DNS 10 min + DNS
Team collaboration setup N/A 10 minutes
Full production setup 1–2 hours 2–3 hours

Both platforms are straightforward to set up. Sequenzy is faster for SaaS-specific workflows (AI generates sequences, Stripe connects automatically). Mailjet is faster for team collaboration setup.

When should you choose Sequenzy?

1. You're a SaaS Founder

Sequenzy is built specifically for SaaS businesses. Native Stripe integration syncs your billing data automatically - MRR, trial status, subscription changes, churn signals. This powers automations that Mailjet can't match without custom Zapier workflows.

2. You Want AI-Generated Content

Sequenzy's AI generates entire email sequences from your product description. Describe your SaaS, and it creates welcome sequences, trial nudges, and feature announcements. Mailjet has no AI content generation - you write everything manually.

3. You Send High Volume

At $99/mo, Sequenzy includes 120,000 emails. Mailjet's Premium at $27/mo includes only 15,000 emails. At 120k emails the two are priced about the same, so the choice comes down to features. Check our pricing for all tiers.

4. You Want Simple Pricing

Sequenzy has one pricing dimension: email volume. All features included at every tier - AI, STO, automation, A/B testing, Stripe. Mailjet splits Essential vs Premium, with key features locked behind Premium. Less to think about with Sequenzy.

5. You Want Revenue Attribution

Track which emails drive MRR, upgrades, and reduce churn. Connect email performance directly to SaaS revenue metrics. Mailjet shows opens and clicks but can't link them to business outcomes.

When should you stick with Mailjet?

1. You Need Team Collaboration

Mailjet is known for real-time collaboration on email templates - multiple team members editing simultaneously, commenting, and reviewing like Google Docs for email. We don't have this feature. If collaborative email creation is important to your workflow, Mailjet wins clearly.

2. You're an Agency

Mailjet offers up to 20 subaccounts on Premium for managing multiple clients. Each client gets isolated data and billing. We don't have subaccounts - Sequenzy is for individual companies, not agencies managing multiple brands.

3. You Need EU Data Hosting

Mailjet is Paris-based and hosts customer data in the EU. For strict GDPR data residency requirements, this matters. Sequenzy is US-based, which may require additional legal consideration for EU data compliance.

4. You Need SMS Marketing

Mailjet integrates with Sinch for SMS marketing alongside email. Sequenzy has a native SMS & MMS add-on too, so both offer email + SMS - Sequenzy's is built in rather than a third-party integration.

5. You Want the Lowest Entry Price

Mailjet Essential starts at $17/mo for basic email without automation. If you don't need automation, A/B testing, AI, or Stripe integration, Mailjet's Essential is the cheapest option. But once you need automation (Premium at $27/mo), Sequenzy at $19/mo is cheaper with more features.

Honest Limitations of Sequenzy

  • No team collaboration: We don't have real-time multi-user template editing.
  • No subaccounts: Not built for agencies managing multiple clients.
  • Newer SMS: Sequenzy has a native SMS add-on rather than Mailjet's established Sinch integration.
  • US-based hosting: Data hosted in US, not EU. May affect GDPR compliance.
  • Less generous free tier: 2,500 emails/mo vs Mailjet's 6,000/mo.
  • Newer platform: Less track record than Mailjet's 10+ years.
  • Smaller integration ecosystem: Mailjet has more third-party integrations.

Honest Limitations of Mailjet

  • No AI content generation: You write all email content yourself.
  • No native Stripe integration: Requires Zapier or custom API work.
  • Higher entry price for automation: 15k emails at $27/mo Premium vs Sequenzy's $19/mo.
  • Feature-gated tiers: Automation and A/B testing require Premium, adding cost.
  • No SaaS-specific features: No trial automations, churn prevention, or revenue attribution.
  • No Send Time Optimization: Sends at scheduled time, not optimized per subscriber.
  • Sinch corporate ownership: Product direction influenced by corporate parent (Sinch/Pathwire).
  • No revenue attribution: Basic email metrics without business impact connection.

Moving from Mailjet to Sequenzy

Sequenzy's migration tool imports subscribers, lists, custom fields, unsubscribes and bounces, past campaigns (as drafts) and templates from Mailjet. The rest is below, step by step.

  1. 1

    Authenticate your sending domain

    Add Sequenzy's DKIM and DMARC records, or let Domain Connect add them for supported DNS hosts, before you send anything. Keep your old provider's records until the switch is done.

    Domain setup guide
  2. 2

    Connect Mailjet to Sequenzy's migration tool

    Paste a Mailjet API key and Sequenzy discovers what is there, shows you a plan to approve, then imports subscribers, lists, custom fields, unsubscribes and bounces, past campaigns (as drafts) and templates. Nothing is sent during the import.

  3. 3

    Rebuild your automations

    Recreate each flow in Sequenzy's sequence builder, or describe it and let AI draft it for you to review.

  4. 4

    Switch sending, then cancel

    Point transactional email and signup forms at Sequenzy, run both tools side by side for a week, then cancel Mailjet. Engagement history does not move with the contacts; to keep it, export it first. API messagehistory and message endpoints per contact; campaign stats CSV download.

    Sequenzy migration guide

Prefer not to do it yourself? Sequenzy moves subscribers, sequences and templates for you at no cost. Start free and ask for a migration, or talk it through with the founder. Mailjet export steps checked on September 28, 2026.

FAQ

Frequently asked questions

Common questions about switching between Sequenzy and Mailjet.

Switching from Mailjet?

Start on the free plan. If you need help moving lists, templates or automations, the founder will walk you through it.

  • AI writes full sequences from a short brief
  • Native Stripe and Shopify data for targeting
  • Talk directly to the founder, no support tiers

Written by Sequenzy, which appears in this comparison. How we compare tools

About Sequenzy

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-integration
  • 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 pricing reference

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)
  • 30k emails/month: $29/month ($313/year annually)
  • 60k emails/month: $49/month ($529/year annually)
  • 120k emails/month: $99/month ($1069/year annually)
  • 300k emails/month: $199/month ($2149/year annually)
  • 600k emails/month: $399/month ($4309/year annually)
  • 900k emails/month: $599/month ($6469/year annually)
  • 1.2M emails/month: $799/month ($8629/year annually)
  • 2M emails/month: $1299/month ($14029/year annually)
  • 3M emails/month: $1999/month ($21589/year annually)
  • 4M emails/month: $2499/month ($26989/year annually)
  • 5M emails/month: $2999/month ($32389/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
  • Team and agent inbox
  • Landing pages
  • Unlimited team members
  • Goal tracking & revenue attribution
  • Unlimited lists and segments
  • Payment integrations
  • API, MCP, and CLI access
  • Unlimited sending domains
  • SPF, DKIM, and DMARC
  • Deliverability monitoring
  • Send time optimization
  • A/B testing

Paid Plan Features (15k - 5M emails/month)

  • Visual automation builder
  • Transactional email API
  • Team and agent inbox
  • Landing pages (Create hosted signup pages and attach a custom domain.)
  • Unlimited team members
  • Goal tracking & revenue attribution
  • Unlimited lists and segments
  • Payment integrations (Stripe, Paddle, Lemon Squeezy)
  • API, MCP, and CLI access
  • Unlimited sending domains
  • SPF, DKIM, and DMARC
  • Deliverability monitoring
  • Send time optimization
  • A/B testing

Enterprise Plan Features (Unlimited emails)

  • Visual automation builder
  • Transactional email API
  • Team and agent inbox
  • Landing pages
  • Unlimited team members
  • Goal tracking & revenue attribution
  • Unlimited lists and segments
  • Payment integrations
  • API, MCP, and CLI access
  • Unlimited sending domains
  • SPF, DKIM, and DMARC
  • Deliverability monitoring
  • Send time optimization
  • A/B testing

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