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Mailjet vs Constant Contact Comparison (2026)

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Mailjet

Constant Contact

Overview

With GDPR-compliant infrastructure and proven deliverability, Mailjet is the best Email Marketing Software & Email API for Teams. Marketers design, deliver, and automate email newsletter while developers power transactional email via robust API platform.

Cloud-based digital marketing platform for small businesses and nonprofits, covering email, SMS, social media, and event management.

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Video & Screenshots

Pricing

Starting from

Per month

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

Per month

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.2

456

264

115

Value for money

Ease of use

Features

Customer support

75%

would recommend this app

4.3

2.9K

1.5K

998

318

Value for money

Ease of use

Features

Customer support

68%

would recommend this app

Pros

“Our data is top-notch: over 98% deliverability, engagement and click rates far above the industry average, almost no unsubscribes, and nearly zero spam reports.”

Bertrand L.

CEO

“I send monthly marketing emails for our engineering company, and Mialjet provides me with everything I need to make them great.”

Bianca L.

Human Resources Generalist

“The interface is fairly simple and allows you to create and send campaigns without too much difficulty.”

Bertrand L.

CEO

Pros

“Constant Contact helped simplify email marketing and communication with customers by centralizing contact lists, campaign creation, scheduling, and reporting into one platform.”

Bradley R.

IT Director

“It provides an intuitive platform for creating professional email campaigns, managing contact lists, and tracking campaign performance without a steep learning curve.”

Stacy S.

Sales Marketing Coordinator

“It handles the practical machinery of email marketing: contact storage, list management, templates, campaign creation, sending, and basic reporting, without turning every campaign into an engineering project.”

James G.

Senior Manager, Infrastructure Engineering

Cons

“We are not using purchased lists, scraped contacts, or unsolicited third-party marketing campaigns. Despite providing multiple explanations about our business model, customer relationship, data collection process, legal basis, and campaign metrics, Mailjet kept applying restrictive sending limits and repeatedly asked for increasingly specific documentation, including individual proof of consent for specific contacts.”

Eduardo V.

Market Research Manager

“Their support responses felt like a never-ending compliance loop, with repeated requests that are not always realistic for large companies with hundreds of thousands of active customers. If you are a company planning to use Mailjet for high-volume customer communications, especially if your contacts come from an existing contractual customer relationship rather than a simple newsletter checkbox, be very careful.”

Eduardo V.

Market Research Manager

“In our experience, Mailjet was not a good fit for enterprise-level customer communication where contacts are collected through real business processes, contracts, customer service interactions, and onboarding workflows.”

Eduardo V.

Market Research Manager

Cons

“You can't resize images within blocks, for example, and when you create a new block yourself, you can't copy and paste them into a new template or save them as a content block for reuse.”

Jill R.

Founder, Owner

“Some advanced automation features lack flexibility compared to other solutions on the market, and customer support sometimes responds with a bit of a long delay.”

Mike L.

Global Head of Product Development

“Some of the automation and advanced segmentation features are not as deep as some higher-end marketing platforms.”

Bradley R.

IT Director