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Email Marketing · head to head

Campaign Monitor vs Mailjet

Campaign Monitor logo

Campaign Monitor

Email Marketing

Email marketing platform priced by contact tier, with unlimited sends only from the mid tier up

From
On request
Rated
-
Full reviewWebsite
Mailjet logo

Mailjet

Email Marketing

Email API, SMTP relay and campaign platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Mailjet has a free tier, so it costs nothing to try first.
  • Each has a real cost: Campaign Monitor the Lite tier caps monthly sends at 2,500 regardless of contact list size, so a list of any meaningful size cannot be emailed even once a month without exceeding it.; Mailjet free plan caps at 6,000 emails per month with a hard 200 emails per day limit
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Campaign Monitor and Mailjet actually diverge.

Attributes where Campaign Monitor and Mailjet differ
AttributeCampaign MonitorMailjet
Starting priceOn requestFree
Pricing modelPer month by contact tier and plan levelsubscription
Free tierNoYes

Identical on both: platforms (Web), 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 Campaign Monitor

  • Drag-and-drop email builder
  • Automation workflows
  • List segmentation
  • Send-time optimisation
  • Landing pages and forms
  • Multi-brand management

Only in Mailjet

Nothing recorded that Campaign Monitor does not also cover.

What people use each for

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

Campaign Monitor

  • A small marketing team wanting straightforward campaign design and automation without a full martech stacknot Mailjet
  • A business with a list under a few thousand contacts and infrequent sends, where the Lite tier's cap is not a real constraintnot Mailjet
  • An agency managing multiple brands wanting Enterprise-tier multi-brand account managementnot Mailjet
  • A team wanting a bundled website builder alongside email on the Premier tiernot Mailjet

Mailjet

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

Where each one falls short

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

Campaign Monitor

  • The Lite tier caps monthly sends at 2,500 regardless of contact list size, so a list of any meaningful size cannot be emailed even once a month without exceeding it.
  • Unlimited sending only starts at the Essentials tier, so the cheap headline Lite price is not comparable to competitors that offer unlimited sends at their entry tier.
  • Its e-commerce-specific automation (abandoned cart flows, predictive segments) is less developed than Klaviyo's, making it a weaker fit for retail-heavy senders.
  • As part of the Marigold group alongside Sailthru and other acquired brands, product roadmap priority is shared across a portfolio rather than dedicated solely to Campaign Monitor.
  • Pricing multiplies on two axes, contact tier and plan level, so estimating total cost requires checking both dimensions rather than a single number.

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

Pricing, plan by plan

Campaign Monitor

On request
  • Lite$undefined/month
    • Monthly send cap of 2,500 emails regardless of list size
    • Basic campaign and template tools
    • Priced by contact tier from under 500 to 50,000+
  • Essentials$undefined/month
    • Unlimited monthly email sends
    • Priority support
    • Priced by contact tier from under 500 to 50,000+
  • Premier$undefined/month
    • Unlimited monthly email sends
    • Premier-level phone support
    • Drag-and-drop website builder included
  • Enterprise$undefined/year
    • Custom quote
    • Multi-brand account management
    • Dedicated account manager, SOC2 and GDPR-aligned security

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

Which should you pick?

Choose Campaign Monitor if

  • You need drag-and-drop email builder.
  • You also want automation workflows.
Campaign Monitor review

Choose Mailjet if

  • You want to start without paying.
Mailjet review

Questions people ask

Is Campaign Monitor or Mailjet better?
Neither clearly leads. Campaign Monitor starts at On request and Mailjet at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Campaign Monitor or Mailjet?
Mailjet has a free tier; the other does not. Paid plans start at On request for Campaign Monitor and Free for Mailjet.
Does Campaign Monitor or Mailjet run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Mailjet for free?
Yes. Mailjet has a free tier, so you can try it without paying. Campaign Monitor starts at On request.
What is Campaign Monitor best used for?
Campaign Monitor is most often used for a small marketing team wanting straightforward campaign design and automation without a full martech stack, a business with a list under a few thousand contacts and infrequent sends, where the lite tier's cap is not a real constraint, an agency managing multiple brands wanting enterprise-tier multi-brand account management, a team wanting a bundled website builder alongside email on the premier tier. Of those, a small marketing team wanting straightforward campaign design and automation without a full martech stack and a business with a list under a few thousand contacts and infrequent sends, where the lite tier's cap is not a real constraint are not what Mailjet is typically brought in for.
What can Campaign Monitor do that Mailjet cannot?
Campaign Monitor covers Drag-and-drop email builder, Automation workflows, List segmentation, Send-time optimisation.

Answered from the vendors’ own pages

Campaign Monitor: Does the cheapest plan include unlimited sends?

No. Lite caps monthly sends at 2,500 emails regardless of list size; unlimited sending starts at the Essentials tier.

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
Campaign Monitor: Who owns Campaign Monitor?

Marigold, a marketing technology group that also owns Sailthru and other acquired email and loyalty platforms.

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
Campaign Monitor: Is there a free plan?

A 30-day free trial with a 500-contact limit is available, but there is no permanent free tier.

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
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