BYOMailer vs Mailchimp

You're paying $666/mo at 100K contacts. Most of them don't even open your emails.

Mailchimp counts every contact on your list, including the ones who unsubscribed or stopped opening months ago. At 50K contacts you're paying $394/mo. At 100K it's $666. BYOMailer + SES handles the same volume for $139.

How many contacts do you have?

25,000

5K100K

Mailchimp Standard

per month

ESP

$288.70

$3,464.40/yr

BYOMailer Founder

$49 plan + $10 SES

You

$59

$708/yr

You save

$229.70/mo

That's $2,756.40/yr back in your pocket. (80% less)

Why switch from Mailchimp?

Stop paying for dead contacts

At 100K contacts, Mailchimp charges $666/mo. How many of those contacts still open your emails? You're paying full price for ghosts. BYOMailer only costs you when you actually hit send.

Your sender reputation is yours

Mailchimp puts you on shared IPs with thousands of other senders. One bad actor tanks everyone's deliverability. With your own SES account, your reputation is entirely yours to build and protect.

No surprise overage bills

Go over your contact limit and Mailchimp auto-charges you for extra blocks. At scale, one import batch can trigger hundreds in surprise charges. SES is pay-as-you-go with no overages.

You own the infrastructure

Your SES account, your domain, your sending history stay with you no matter what. If you outgrow BYOMailer, your entire email infrastructure comes with you.

Feature by feature

FeatureMailchimpBYOMailer
Pricing
Pricing basisPer contacts (all contacts)Flat plan fee + SES usage
Charges for unsubscribedYes, counts all contactsNo. SES charges per email sent.
Monthly send limits10-15x contacts/moUnlimited (SES rate limit only)
OveragesAuto-charge contact blocksNone. SES is pay-as-you-go.
Cost at 50K contacts$394/mo$119/mo ($99 Growth + $20 SES)
Cost at 100K contacts$666/mo$139/mo ($99 Growth + $40 SES)
Features
Lists1 / 3 / 5 / Unlimited by planUnlimited on all plans
Email editorDrag-and-drop builderRich text editor + HTML
A/B testingEssentials+ (subject only)Subject + body variants
Email sequencesFree: none, Std: 200 stepsUnlimited on all plans
Native integrations300+REST API + Zapier (planned)
Deliverability
IP typeShared with other sendersYour own via SES
DKIM / SPF / DMARCManaged by platformFull control, your domain
Custom sending domainPremium onlyAll plans (required)
Team
Users / seats1 / 3 / 5 / Unlimited1 / Unlimited / Unlimited
REST APIAll plansAll plans

BYOMailer connects to your own Amazon SES account. You get SES deliverability and pricing with a proper marketing UI on top.

Things Mailchimp doesn't put in the headline

Counts ALL contacts including unsubscribed toward your bill

Prices shown are the "after promo" rate. The 50% discount expires.

Email send limits are 10x/12x/15x contacts depending on plan

Removed contacts can take up to 30 days to stop being billed

The full breakdown, tier by tier

ContactsMailchimpBYOMailerYou Save
500$19.99$49.20 -
1,500$44.42$49.60 -
2,500$66.62$50 $16.62
5,000$99.93$51 $48.93
10,000$130.47$53 $77.47
15,000$210.97$55 $155.97
20,000$249.84$57 $192.84
25,000$288.70$59 $229.70
30,000$327.56$61 $266.56
40,000$352.55$65 $287.55
50,000$394.18$69 $325.18
75,000$524.65$79 $445.65
100,000$666.23$89 $577.23

BYOMailer cost = flat plan fee + Amazon SES at $0.10/1,000 emails, assuming 4 emails per contact per month.

Same emails. Same inbox. Way less money.

BYOMailer connects to your own Amazon SES account. You keep full control of your deliverability and stop paying the ESP tax.

Create your account

Free to try. Send your first 25,000 emails before you subscribe.

"Flat pricing" isn't the same as pay-to-send

Plenty of Mailchimp alternatives advertise flat pricing: a fixed monthly fee for unlimited subscribers. It's cheaper than Mailchimp counting every unsubscribed contact, but it's still a charge to store contacts. Your bill is set by how big your list is, not by how much you actually email it.

Sending through your own AWS SES flips that. SES charges $0.10 per 1,000 emails. You pay to send, not to store. A dormant 80,000-contact list costs almost nothing until you email it, and a small list you email daily still costs pennies. That's the difference no flat-rate plan can match. New to SES? Start with the AWS SES setup guide.

Who should switch to BYOMailer

You should consider switching from Mailchimp to BYOMailer if you have a growing SaaS list, send product updates or lifecycle emails, and are tired of paying based on total contacts. BYOMailer makes more sense when your list is valuable, your sending volume is predictable, and you want your own SES account to become the sending infrastructure.

Mailchimp is best when...

  • You want a broad small-business marketing suite
  • You need templates, forms, landing pages, and beginner-friendly tools
  • You do not want to think about AWS SES

BYOMailer is better when...

  • You run SaaS lifecycle email
  • You have thousands of contacts
  • You care about flat pricing
  • You want your own SES account
  • You want migration help into a lower-cost email stack

Who should not switch

Do not switch to BYOMailer if you want a beginner-friendly all-in-one marketing suite, built-in social posting, ecommerce revenue attribution, paid newsletter monetization, or a platform that hides all infrastructure decisions from you. BYOMailer is for teams that value ownership, control, and lower sending cost more than having every possible marketing feature in one suite.

Migration from Mailchimp

Moving from Mailchimp to BYOMailer usually means exporting your contacts, preserving tags/lists where possible, recreating your core templates, rebuilding your most important sequences and automations, and connecting your AWS SES account for sending. We help you make the move on every plan, not just the pricey ones.

Item Migrated? Notes
Contacts YesCSV import or structured import
Tags/lists YesPreserved when export data allows it
Custom fields YesMapped during import
Templates YesCore templates recreated depending on plan
Sequences YesRebuilt in BYOMailer depending on plan
Automations YesRebuilt in BYOMailer depending on plan
Historical campaign data Usually noKeep old account/export for historical reference
Sending reputation New / owned via SESYou control sender reputation through your SES/domain setup

We help you make the move on every plan, not just the pricey ones.

Frequently asked questions

Is BYOMailer cheaper than Mailchimp?

For a growing list, almost always. Mailchimp bills on total contacts (including unsubscribed and inactive ones), so the price climbs as your list grows. BYOMailer charges a flat plan fee and you pay AWS SES directly at about $0.10 per 1,000 emails, so cost tracks sending volume, not list size.

Does BYOMailer replace Mailchimp automations?

Yes for the core use cases. BYOMailer has sequences and automations for onboarding, lifecycle, product updates, and reactivation. It does not try to replace Mailchimp's broad small-business marketing suite (social posting, landing pages, ecommerce tooling).

Can I migrate Mailchimp contacts to BYOMailer?

Yes, and we help you do it on every plan. You export your contacts, we import them into BYOMailer with your custom fields mapped along the way.

Does BYOMailer support tags and lists?

Yes. BYOMailer supports tags, lists, and custom fields on every plan, and preserves them during migration when your Mailchimp export includes that data.

Do I need AWS SES to use BYOMailer?

Yes. BYOMailer sends through your own AWS SES account. That is the whole point: you keep the low SES sending cost and own your sender reputation, while BYOMailer provides the marketing layer on top.

Should beginners use BYOMailer instead of Mailchimp?

If you are brand new to email and do not want to touch AWS at all, Mailchimp is the gentler starting point. BYOMailer is built for technical SaaS founders and teams who want SES ownership and flat pricing.

Keep exploring

Try BYOMailer with your SES

Create an account and connect your own AWS SES account in minutes.

Create your account

Free to try. Send your first 25,000 emails before you subscribe.