Overview
Mailchimp and Amazon SES represent opposite ends of the email spectrum. Mailchimp is a polished email marketing platform with visual tools, automation, and templates ready to use in minutes. Amazon SES is raw cloud infrastructure that sends email at $0.10 per 1,000 emails but has zero marketing features.
The choice depends entirely on your team composition and what you are building.
The 100x Price Difference
At 10,000 emails per month, Mailchimp costs roughly $100. Amazon SES costs roughly $1. At 100,000 emails, Mailchimp costs $350+ while SES costs about $10. The cost gap is enormous and only grows with volume.
However, this comparison omits the development cost. SES requires building campaign tools, templates, automation, bounce handling, and subscriber management. For a company without developers, SES is not even an option. For companies with engineering teams, the investment can pay for itself quickly at scale.
Marketing Capabilities
Mailchimp has comprehensive marketing tools - visual campaign builders, automation workflows, A/B testing, landing pages, audience segmentation, and analytics dashboards. A marketing manager can run the entire email operation without technical help.
SES has none of this. It is an API that sends email. Everything else - templates, scheduling, subscriber lists, analytics - must be built or sourced separately. Tools like Sendy exist to add a layer on top of SES, but they add complexity.
Infrastructure Power
Where SES excels is raw sending power. It handles billions of emails for companies like Amazon, Netflix, and Reddit. There are effectively no volume limits, dedicated IPs are $15/month, and the AWS ecosystem provides monitoring and scaling automatically.
Mailchimp is designed for small to mid-size businesses. At high volumes, both cost and rate limits become factors that SES handles effortlessly.
For SaaS Companies
SaaS companies often need both marketing email and transactional email. Running Mailchimp for marketing and SES for transactional is a common pattern. Sequenzy offers a unified alternative with both capabilities plus Stripe integration for subscription-aware automation at $49/month.
Use-case matchups
| Use case | Better fit | Why |
|---|---|---|
| Ready-to-use marketing campaigns | Mailchimp | Mailchimp includes audience management, templates, automation, forms, and analytics. |
| Raw high-volume email infrastructure | Amazon SES | SES is much cheaper for teams that can build and maintain the missing marketing layer. |
| Non-technical marketing team | Mailchimp | Mailchimp works without engineering support. |
| Engineering-owned transactional email | Amazon SES | SES gives developers low-cost sending infrastructure inside AWS. |
| SaaS marketing plus transactional email | Sequenzy | Sequenzy avoids running Mailchimp and SES as separate tools for SaaS lifecycle email. |
Best Fit by Marketer-Owned Campaigns and Raw Email Infrastructure
Best email marketing platform for non-technical campaign teams
Mailchimp is the better fit when marketers need ready-to-use audiences, templates, forms, automations, landing pages, reporting, and campaign tools without owning email infrastructure.
Best low-cost email infrastructure for AWS engineering teams
Amazon SES is the better fit when developers need raw high-volume sending, transactional email, AWS-native infrastructure, and the lowest possible delivery cost while building the missing marketing layer themselves.
Best email tool for unified SaaS marketing and transactional email
Sequenzy is the better fit when a SaaS team wants lifecycle campaigns, transactional messages, Stripe-triggered automations, and newsletters without operating Mailchimp and SES as separate systems.
Pricing reality
Amazon SES is dramatically cheaper for raw sends, but it is not a marketing platform. The hidden cost is engineering time: bounce handling, complaint processing, templates, subscriber management, scheduling, and analytics. Mailchimp costs more because those workflows are built in and usable by marketers.
Review signals
The reviews on this page point to the same tradeoff. Mailchimp users value shipping campaigns without developer involvement. SES users value low transactional cost at scale but acknowledge that they had to build and maintain the surrounding infrastructure.
Migration checklist
| Step | Moving to Mailchimp | Moving to Amazon SES | Moving to Sequenzy |
|---|---|---|---|
| Scope | Confirm campaigns, audiences, forms, templates, automations, and reporting needs. | Define sending architecture, templates, bounce/complaint handling, and unsubscribe logic. | Confirm contacts, campaigns, transactional templates, Stripe events, and lifecycle journeys. |
| Data export | Export contacts, segments, templates, automations, and suppression data. | Export recipients, templates, suppression records, and event requirements. | Export contacts, lifecycle fields, billing IDs, and suppression records. |
| Integration rebuild | Rebuild campaigns, forms, automations, and any transactional add-on setup. | Build or connect campaign tooling, SNS webhooks, suppression logic, and analytics. | Rebuild campaign, transactional, and billing-triggered workflows together. |
| QA | Test forms, automations, templates, bounces, unsubscribes, and analytics. | Test domain auth, sandbox exit, bounces, complaints, unsubscribes, and monitoring. | Test campaign, transactional, and Stripe-triggered paths end to end. |
Decision checklist
- Choose Mailchimp if marketers need to operate email without engineering help.
- Choose Amazon SES if engineers need low-cost raw sending and can own the missing platform layer.
- Choose Sequenzy if a SaaS team wants marketing and transactional email in one product with Stripe-aware automation.
How to make the Mailchimp vs Amazon SES decision
Mailchimp is a complete email marketing platform for non-technical users. Amazon SES is raw email infrastructure at rock-bottom prices ($1 per 10k emails) but requires significant development to use.
The decision should start with the workflow, not the brand. In a email-marketing stack, the right platform is the one that makes your next important campaign easier to launch and easier to improve. If the team needs deep platform capability but has no owner for setup, reporting, and iteration, the larger product will underperform. If the team needs only a narrow workflow and buys a broad suite, the extra features become drag.
Look hardest at these differences: Cost; Ease of Use; Marketing Tools. Those are the areas most likely to affect daily work after the demo is over.
| Decision area | Pick Mailchimp when... | Pick Amazon SES when... |
|---|---|---|
| Primary workflow | Its core strength matches the campaign you need next. | Its core strength matches the campaign you need next. |
| Data model | Your customer data already fits its segments and triggers. | Your customer data already fits its segments and triggers. |
| Team ownership | Someone can own setup, testing, and reporting inside the tool. | Someone can own setup, testing, and reporting inside the tool. |
| Budget | The price is justified by workflows you will use now. | The price is justified by workflows you will use now. |
My read: Mailchimp is the right choice for businesses wanting ready-to-use email marketing without development overhead. Amazon SES is for engineering teams that can build custom email systems and want minimal cost at high volume. SaaS companies wanting a middle ground should consider Sequenzy for marketing and transactional email at $49/month.
Before committing, rebuild one live use case in the preferred tool. Use a real audience, real copy, a real trigger, and a real success metric. If that test feels clear, the platform is probably a good fit. If it requires workarounds before the first campaign is live, keep evaluating.
