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Email Marketing · head to head

Mailjet vs Sendy

Mailjet logo

Mailjet

Email Marketing

Email API, SMTP relay and campaign platform

From
Free
Rated
-
Full reviewWebsite
Sendy logo

Sendy

Email Marketing

Self-hosted newsletter app bought once for $69 that sends through your own Amazon SES account

From
$69/one-time
Rated
-
Full reviewWebsite

The short version

  • Only Mailjet has a free tier, so it costs nothing to try first.
  • Each has a real cost: Mailjet free plan caps at 6,000 emails per month with a hard 200 emails per day limit; Sendy free updates run only to the next major version, so the one-time purchase is really one purchase per major release and the long-term cost is not zero.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mailjet and Sendy actually diverge.

Attributes where Mailjet and Sendy differ
AttributeMailjetSendy
Starting priceFree$69/one-time
Pricing modelsubscriptionOne-time purchase
Free tierYesNo
PlatformsWebWeb, Linux

Identical on both: user rating (Not yet rated), category (Email Marketing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Mailjet

Nothing recorded that Sendy does not also cover.

Only in Sendy

  • One-time licence
  • Amazon SES delivery
  • Multiple brands
  • Autoresponders
  • Segmentation
  • Bounce and complaint handling
  • Reporting
  • Client access

What people use each for

The jobs each tool is most often brought in to do.

Mailjet

  • Email marketing campaigns for small to medium-sized businessesnot Sendy
  • Transactional email delivery with API and SMTP relaynot Sendy

Sendy

  • A publisher with a large list sending frequently, where a hosted platform bills by subscriber count month after monthnot Mailjet
  • An agency managing newsletters for several clients who each get their own brand and login under one licencenot Mailjet
  • A business that must keep subscriber data on its own infrastructure for privacy or contractual reasonsnot Mailjet
  • A developer wiring signups from a custom application into a mailing list without paying platform API feesnot Mailjet

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mailjet

  • Free plan caps at 6,000 emails per month with a hard 200 emails per day limit
  • Starter plan is capped at 2,000 contacts; unlimited contacts require the Essential tier
  • Email credits do not roll over and unused emails expire at the end of each billing cycle
  • Essential and Premium plans both cap at 15,000 emails per month for $17 and $27 respectively, so the price increase buys other features, not more volume

Sendy

  • Free updates run only to the next major version, so the one-time purchase is really one purchase per major release and the long-term cost is not zero.
  • Deliverability becomes entirely your problem: SES gives you a raw sending pipe and no warm-up guidance, reputation dashboards or deliverability consultants when a campaign starts landing in spam.
  • Amazon SES requires production access approval and will suspend accounts on high bounce or complaint rates, which can take a list offline mid-campaign with little warning.
  • The template editor and design tooling are basic next to Mailchimp or Klaviyo, so anything visually ambitious means hand-written HTML email.
  • You own the server: PHP upgrades, database backups and patching are yours, and an unmaintained Sendy install holding a subscriber list is a data breach waiting to happen.

Pricing, plan by plan

Mailjet

Free
  • FreeFree
    • 6,000 emails per month
    • 200 emails per day limit
    • 1,000 contacts
  • Starter$9/monthly
    • 8,000 emails per month
    • 2,000 contacts
    • Brand Kit
  • Essential$17/monthly
    • 15,000 emails per month
    • Unlimited contacts
    • Segmentation
  • Premium$27/monthly
    • 15,000 emails per month
    • Advanced statistics
    • Automations

Sendy

$69/one-time
  • Sendy licence$69/one-time
    • One-time purchase, no subscription
    • Free updates only up to the next major version
    • Unlimited lists, subscribers and campaigns
  • AI Assistant bundle$39/one-time
    • Optional add-on, listed at a discount from $49
    • AI writing assistance inside the campaign editor
  • Installation service$79/one-time
    • Optional one-off setup by the vendor
    • For buyers who do not want to configure hosting and SES themselves

Which should you pick?

Choose Mailjet if

  • You want to start without paying.
Mailjet review

Choose Sendy if

  • You need one-time licence.
  • You work on Web, Linux.
  • You also want amazon ses delivery.
Sendy review

Questions people ask

Is Mailjet or Sendy better?
Neither clearly leads. Mailjet starts at Free and Sendy at $69/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mailjet or Sendy?
Mailjet has a free tier; the other does not. Paid plans start at Free for Mailjet and $69/one-time for Sendy.
Does Mailjet or Sendy run on more platforms?
Mailjet runs on Web. Sendy runs on Web, Linux.
Can I use Mailjet for free?
Yes. Mailjet has a free tier, so you can try it without paying. Sendy starts at $69/one-time.
What is Mailjet best used for?
Mailjet is most often used for email marketing campaigns for small to medium-sized businesses, transactional email delivery with api and smtp relay. Of those, email marketing campaigns for small to medium-sized businesses and transactional email delivery with api and smtp relay are not what Sendy is typically brought in for.
What can Mailjet do that Sendy cannot?
Sendy covers One-time licence, Amazon SES delivery, Multiple brands, Autoresponders.

Answered from the vendors’ own pages

Mailjet: Does Mailjet offer annual billing discounts?

Yes, Mailjet offers annual billing with a 10% discount compared to monthly billing. Both monthly and annual payment cycles are available for all paid plans.

Source
Sendy: What does it actually cost to send?

The licence is $69 once. Delivery is Amazon SES at roughly $1 per 10,000 emails, plus your own hosting, so a 50,000-contact weekly newsletter costs a few dollars a month to send.

Mailjet: What payment currencies are supported?

Mailjet accepts payments in USD, EUR, and GBP. Currency selection is available during account setup and can be changed in account settings.

Source
Sendy: Are updates free forever?

No. Updates are free up to the next major version, for example within 7.x. Moving from 7.x to 8.x is a paid upgrade.

Mailjet: What features are limited on the Free plan?

The Free plan includes 6,000 emails per month with a 200 email per day limit, 1,000 contacts, basic statistics, form builder, and APIs. Advanced statistics, automations, landing pages, and team management require paid plans.

Source
Sendy: Do I need to know how to set up a server?

Standard PHP and MySQL hosting is enough and the vendor compares it to installing WordPress, but the SES side needs AWS configuration. An $79 installation service is offered if you would rather not.

Sendy: What happens if Amazon suspends my SES account?

Your sending stops until you resolve it with AWS. There is no alternative delivery route built in, and this is the single biggest operational risk of the model.

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