Best Fit by Email Infrastructure Need
Best Amazon SES alternative for SaaS teams that do not want to build: Sequenzy
Choose Sequenzy when the real requirement is not just sending email cheaply, but running campaigns, sequences, transactional email, billing-triggered dunning, and lifecycle automation without building those systems in-house. Start with transactional and marketing email, developer API, and Stripe integration.
Best option for raw AWS-native sending cost: Amazon SES
Stick with Amazon SES when you have engineers available, already operate inside AWS, and want the lowest possible cost per thousand emails. It is infrastructure, not a marketing platform, so you own templates, analytics, suppression handling, and automation.
Best option for critical transactional delivery: Postmark
Postmark is the better fit when password resets, magic links, receipts, and account alerts need mature logging and strong deliverability more than a full marketing suite. Compare it in the Postmark comparison.
Best option for React and TypeScript transactional email: Resend
Resend is the better fit when the team wants modern SDKs, React Email, and a clean developer workflow. It is lighter than Sequenzy and more productized than SES. See the Resend comparison and React Email support guide.
Best option for inbound email routing: Mailgun
Mailgun is the better fit when receiving, parsing, and routing inbound email is as important as sending. It is a stronger infrastructure choice for reply-by-email, support ingestion, and custom email-heavy products. See the Mailgun comparison.
When should you choose Sequenzy over Amazon SES?
Sequenzy is the better choice when you need a complete email marketing platform without building infrastructure from scratch. Here are the key scenarios:
1. You're a SaaS Founder Who Wants Billing-Triggered Emails
Sequenzy connects directly to Stripe, Paddle, and Polar and triggers emails from billing events - failed payments, trial expiration, subscription upgrades, churn signals - without writing webhook code. Amazon SES is raw sending infrastructure with zero integrations.
2. You Want Marketing + Transactional in One Platform
Sequenzy handles both transactional emails (password resets, receipts) and marketing campaigns with visual automation in one platform. SES can send any email, but you need to build the entire campaign, automation, and subscriber management layer yourself.
3. You Don't Want to Build Email Infrastructure
SES requires 6–12 months of engineering to build a usable email platform on top of it. Subscriber management, template editor, automation engine, analytics, campaign scheduler - all custom code. Sequenzy gives you all of this out of the box in minutes.
4. You Want AI-Generated Email Sequences
Describe what you want in plain language and Sequenzy's AI sequence generator creates a full multi-email automation - subject lines, email copy, timing, and triggers. SES has no concept of sequences or AI features.
5. You Value Your Engineering Time
If you're a small SaaS team, every hour spent building email infrastructure is an hour not spent on your product. The monthly savings from SES ($87/month at 120k emails) rarely justify the engineering investment required to build what Sequenzy provides out of the box.
When should you stick with Amazon SES?
Amazon SES is the better choice in several specific scenarios. Be honest about whether these apply to you:
1. You Need the Absolute Lowest Cost Per Email
SES is $0.10 per 1,000 emails with no monthly fee. At 1 million emails/month, SES costs ~$100 vs Sequenzy's ~$799. If raw sending cost is your primary concern and you have engineers to build the tooling, SES is unbeatable on price.
2. You Have Engineering Resources to Build Custom Tooling
If your team has backend engineers who can build subscriber management, automation logic, template systems, and analytics - and you want full control over every aspect - SES gives you the raw infrastructure to build exactly what you need.
3. You're Already Deep in the AWS Ecosystem
SES integrates natively with Lambda, S3, CloudWatch, SNS, and the entire AWS stack. If your infrastructure runs on AWS and you want seamless integration with your existing services, SES fits naturally.
4. You Need Global Region Selection
SES is available in 28+ AWS regions worldwide. If you have data residency requirements (GDPR, specific country regulations), SES lets you send from the region that meets your compliance needs.
5. You Need Inbound Email Processing
SES can receive inbound emails and route them to S3, Lambda, or SNS for processing. Sequenzy is send-only. If you need to process incoming emails, SES handles it.
Pricing at Every Scale: Sequenzy vs Amazon SES
Sequenzy charges per email volume tier (all features included). SES charges per email sent (raw sending only). Here's the comparison:
| Emails/mo | Sequenzy | Amazon SES | Difference |
|---|---|---|---|
| 2,500 | Free | ~$0.25 (or free on EC2) | - |
| 15,000 | $19/mo | ~$1.50 | Sequenzy $17.50/mo more |
| 60,000 | $49/mo | ~$6 | Sequenzy $43/mo more |
| 120,000 | $99/mo | ~$12 | Sequenzy $87/mo more |
| 300,000 | $199/mo | ~$30 | Sequenzy $169/mo more |
| 600,000 | $399/mo | ~$60 | Sequenzy $339/mo more |
| 1.2M | $799/mo | ~$120 | Sequenzy $679/mo more |
The hidden cost: SES savings look dramatic, but you need to build everything else yourself. Subscriber management, automation engine, template editor, campaign scheduler, analytics dashboard, bounce handling, unsubscribe management - estimate 500–1,000 engineering hours minimum. At $100/hour, that's $50,000–$100,000 in engineering cost before you send your first marketing email.
Sequenzy includes: All features on every tier - visual editor, automation, Stripe/Paddle/Polar integration, AI sequences, Send Time Optimization, revenue attribution, subscriber management. No feature gates.
Who Should Use Each Platform
- Solo SaaS founder (pre-revenue to $10k MRR) → Sequenzy. You don't have engineering bandwidth to build email infrastructure. Get started in 15 minutes with everything you need.
- SaaS team (2–10 people, $10k–$100k MRR) → Sequenzy. Unified transactional + marketing, billing-event triggers, AI sequences, and revenue attribution. Engineering time is better spent on your product.
- Startup with dedicated email engineering team → Amazon SES. If you specifically have engineers building email infrastructure and want full control, SES gives you the raw tools.
- High-volume sender (10M+ emails/month) → Amazon SES. The cost savings at massive scale are significant, and you likely have the engineering team to support it.
- AWS-native enterprise → Amazon SES. Tight integration with your existing AWS infrastructure, compliance regions, and dedicated IPs.
- Newsletter creator or blogger → Sequenzy. You want to write and send, not configure AWS. Sequenzy is ready in minutes.
- DevOps team sending notifications → Amazon SES. If you're already in AWS and just need transactional sends with no marketing, SES is the simplest path.
Real Setup Time: Sequenzy vs Amazon SES
How long it actually takes to go from signup to sending your first automated email:
Sequenzy - minutes to first automation:
- Sign up (2 minutes - no credit card required)
- Connect your domain and verify DNS (5 minutes)
- Connect Stripe/Paddle/Polar (3 minutes - OAuth flow)
- Use AI to generate your first sequence - describe "welcome sequence for new trial users" and get a complete multi-email automation (2 minutes)
- Review, customize if needed, and activate (5 minutes)
Total: ~15–20 minutes to a live automation. No AWS knowledge needed. No infrastructure setup.
Amazon SES - weeks to months:
- Create AWS account and configure IAM permissions (30 minutes–1 hour)
- Verify your domain in SES and set up DKIM/SPF (30 minutes)
- Request production access - you start in sandbox mode with restricted sending (1–3 days for approval)
- Set up bounce/complaint handling via SNS (1–2 hours)
- Build or buy email templates (days–weeks)
- Build subscriber management system (weeks)
- Build automation engine (weeks–months)
- Build campaign scheduler and analytics (weeks)
- Warm up your sending reputation (2–4 weeks of gradual volume increase)
Total: 2–6 months to a functional email marketing platform. And that's with experienced engineers. SES is raw infrastructure - everything above the API is your responsibility.
Honest Limitations of Sequenzy
- Higher cost per email: $99/mo vs ~$12/mo at 120k emails - you pay for the platform, not just sending
- No AWS ecosystem integration: No Lambda, S3, CloudWatch, or SNS integration
- No global region selection: Single region - can't choose data residency location
- No volume discounts: Fixed tiers, no negotiated pricing at high volumes
- No inbound email: Send-only platform - can't receive and process emails
- Fewer channels: Email plus an SMS add-on, but no other channels
- Newer platform: Less enterprise-scale track record than AWS infrastructure
- No CRM: No deal pipelines or lead scoring
Honest Limitations of Amazon SES
- No marketing features: Raw sending API - no campaigns, automation, or subscriber management
- No email builder: No visual editor, no templates - bring your own HTML
- No automation: Zero workflow capabilities - build everything with Lambda/Step Functions
- No subscriber management: No contacts, tags, segments, or lists
- No analytics beyond delivery: Basic bounce/delivery metrics only - no opens, clicks, conversions, or revenue
- Requires AWS expertise: IAM, DNS verification, SNS setup, production access requests
- Sandbox by default: New accounts are restricted - must request production access
- Warm-up required: Need weeks of gradual volume increase for new IPs/domains
- No integrations: No Stripe, no payment platforms, no third-party connections
- Engineering investment: Building a usable platform on SES costs $50k–$100k+ in engineering time