Mailjet Reviews 3,690

TrustScore 4 out of 5

4.0

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Review summary

Based on reviews, created with AI

Reviewers had a great experience with this company. Customers consistently praise the customer service and staff for their helpfulness, responsiveness, and positive attitudes. Many people highlight the quick response times and the personalized approach taken by support agents, who often go above and beyond to resolve issues and guide users through processes. However, some people were dissatisfied with the service and user experience, citing slow interfaces, issues with account blocks, and unaddressed support tickets. A few other people also felt that the support could be unresponsive at times, leading to delays in resolving problems.

What people talk about most

Customer service

Reviewers mention positive feedback about customer service. Many customers report helpful, professional, and... See more

Staff

Customers consistently note positive experiences with staff. Many reviewers praise the staff for being... See more

Response time

Consumers find response times to be positive. Many reviewers praise the quick, clear, and detailed responses... See more

Service

Reviewers highlight ambiguous aspects of service. While some customers praise the fantastic support, quick... See more

User experience

People report ambiguous experiences with user experience. Many reviewers praise the easy setup, helpful... See more

Based on these reviews

Rated 4 out of 5 stars

My business validation has not been approved yet, maybe because I'm a small customer. After registration they announce that it'll take a few minutes to get started, I'm stuck at first step and ticke... See more

Company replied

Rated 4 out of 5 stars

Despite of Mailjet's technical issues, an app that could much more (ergonomy, speed...) and a price like others (too expensive!), I was very surprised by the human support (Théo in particular). Kind... See more

Company replied

Rated 5 out of 5 stars

We use the MailJet system to send emails integrated into our cash register system. Everything is possible via API, which has allowed us to set up a highly efficient system. What's more, in the even... See more

Company replied

Rated 5 out of 5 stars

I was an absolute beginner working with Mailjet, but I received incredible support from Lara. She was extremely patient and guided me step by step throughout the process, and we even had some fun chat... See more

Company replied


Company details

  1. Email Service Provider

Written by the company

With GDPR-compliant infrastructure and proven deliverability, Mailjet is the best Email Marketing Software & Email API for Teams. Marketers design, deliver, and automate email newsletters and automations, while developers power high-volume transactional email via robust APIs and SMTP relay. Collaborative editing, templates, and approval flows keep teams fast and consistent; advanced segmentation, A/B testing, and analytics drive growth with every send. Built in Europe with privacy-first hosting options, Mailjet helps you reach the inbox at scale without compromising compliance. Connect easily to your stack with native integrations for ecommerce, CRM, and data tools. More than 100,000 customers globally trust Mailjet to deliver critical messages and campaigns. Choose one platform that brings marketers and developers together.

Build Together. Send Smarter.

Written by the company

Mailjet is a powerful email service provider used by +150,000 companies all over the world to create, send, and track their marketing and transactional emails. Mailjet’s intuitive user interface is available in 5 languages (English, French, German, Spanish, and Italian) and enables marketing teams to create, test, and send beautiful emails. Our drag & drop email builder helps you create 100% responsive emails in no time. Try it now for free: https://app.mailjet.com/signup/ Thanks to our advanced user management and content locking, companies have better control of their brand image and accounts. Mailjet’s Support team works around the clock to answer questions and resolve customer issues in English, French, German, and Spanish. Enterprise accounts benefit from a dedicated Customer Success Manager to help them on board and get everything they want out of Mailjet and more.

Contact info

4.0

Great

TrustScore 4 out of 5

4K reviews

5-star
4-star
3-star
2-star
1-star

Replied to 91% of negative reviews

Typically replies within 48 hours

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Rated 5 out of 5 stars

Mihael provided great assistance

Mihael has been extremely patient, knowledgeable, and flexible throughout the entire process. We’ve received excellent support and truly appreciated the clear and consistent communication, which made everything much easier

17 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hey Davide, thank you for your kind words. We're happy to hear you received a top-notch support, just the way it should be!

Rated 5 out of 5 stars

Nice services

Nice services, deliverability 100%. But the most important - every question and every request is processed extremely quickly.

10 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hi Teresa, we're delighted to hear you are satisfied with the platform and the support, just the way it should be! Happy sending!

Rated 1 out of 5 stars

Worst customer support

Worst customer support, not onboarded the profile even after 2 weeks. Response time slow and minimal explanation.

16 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hello Steffen, we're truly sorry to hear about your experience so far. Due to the large number of queries received over the past days, it has taken us longer to answer you, please accept our sincere apologies. A support member from our team has taken care of your ticket.

Rated 5 out of 5 stars

Excellent and human support from Mihael!

My transactional account was blocked due to a technical misunderstanding and a past security issue. Mihael from the support team was incredibly helpful, patient, and professional. He took the time to escalate the issue and understood the situation perfectly. My account was unblocked quickly. Truly "legendary" support, thank you Mihael

13 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Oh wow! What an amazing feedback, we appreciate it! We'll make sure to pass on your compliments to Mihael, they will for sure make his day!

Rated 4 out of 5 stars

Waiting for their approval, now approved

My business validation has not been approved yet, maybe because I'm a small customer. After registration they announce that it'll take a few minutes to get started, I'm stuck at first step and ticket has been open for 24 hours.

Edit: Just got cleared and I can now start developing with Mailjet. It’s good they have compliance in place for new customers, trust is good but support can be more responsive (really good when they get in touch). But I’m now a happy customer!

11 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hey Daniel, we're so glad to hear that the issue has been resolved! We're glad to have you onboard, happy sending!

Rated 3 out of 5 stars

Unexpected service interruption

The service was interrupted without any notification from your end and I stopped receiving the emails.

Ideally, I would have liked to be informed beforehand.

9 February 2026
Mailjet logo

Reply from Mailjet

Hello Athanasios, thank you for reaching out to us. We have looked into your account and do not notice any interruption of service from our side. Please do not hesitate to contact our support team whenever you have any issues, we would be happy to assist you promptly and resolve this for you. Here is how you can contact our support team: https://documentation.mailjet.com/hc/en-us/articles/5460904032795-How-to-Contact-Mailjet-Support

Rated 5 out of 5 stars

Invoice issue

I had an issue about my last invoice. I just call and Théo did the rest. He was very helpfull on this subject and solved the issue in just fews days.

Thanks a lot Théo !

20 January 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hey Guillaume, we're satisfied to hear Théo resolved your issue promptly and that he was helpful! Happy sending!

Rated 5 out of 5 stars

Great, personalised service.

Great, personalised service from the MJ team. Made it very easy to clear hurdles and get the work done.

2 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Thank you for your kind words, Tristan! Happy to hear you are satisfied with the service. Happy sending!

Rated 5 out of 5 stars

We are using mailjet for our business…

We are using mailjet for our business and we are very satisfied with the results and support. I wanna thank the help to Slavena.

10 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hey Attila, we'll make sure to pass on your thanks to Slavena! Do not hesitate to reach out to us again if you have any additional questions.

Rated 5 out of 5 stars

Great Support

Spoke to Anastasia who resolved the issues I was having. Wonderful support agent.

10 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hello Michael, we're so happy to hear Anastasia was able to change your mind and assist you promptly. Thank you for amending your review too. Wishing you a lovely day!

Rated 5 out of 5 stars

Absolutely thrilled !

Absolutely thrilled with the support I received (Thank's Mihael) ! The assistance was not only efficient but also incredibly friendly and engaging. Every question I had was answered with clarity and patience, making the entire process smooth and stress-free. The dedication to ensuring a positive experience was evident, and I couldn't be happier with the outcome. Highly recommend their service to anyone in need. Thank you for going above and beyond !

5 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Thanks a lot, Loïc! What an amazing review! We appreciate your kind words and we'll pass on your compliments to Mihael, they will for sure put a smile on his face. :)

Rated 5 out of 5 stars

Simeon from the support team is…

Simeon from the support team is fantastic. He solved my problem instantly and patiently answered all my questions. You're very lucky to have such an employee.

4 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Oh wow, thank you for your kind words about our colleague Simeon! We'll make sure to pass on your compliments to him. Happy sending!

Rated 5 out of 5 stars

Quick and helpful support

Quick, clear and detailed response from Mihael from the Mailjet Support team.
Mihael answered all my technical questions regarding segmentation and contact properties.

3 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hey Ana, we're delighted to hear you received helpful and quick support from our colleague Mihael. We'll make sure to pass on your compliments to him. Wishing you a good day!

Rated 5 out of 5 stars

Mailjet Support is great

Mailjet Support is great. I had a problem, opened a Support Case and it was resolved quickly.

3 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hey Shaun, thank you so much for the positive feedback! We're glad to hear you received prompt support. Do not hesitate to contact us again if you have any additional questions. :)

Rated 1 out of 5 stars

It's a scam

I had a very bad experience with Mailjet.

My account was banned only two days after I paid for a subscription, supposedly for not respecting their terms and conditions — without any concrete explanation or details.

Worse:

The email campaign I sent was corrupted on their side, and all the links inside the emails sent to my clients were broken.

When I contacted support for help, nobody responded.

When I followed up, I was told that I was not the person who subscribed to the account, which is completely false and makes no sense.

At no point did anyone try to help, investigate, or clearly explain what happened. My account was simply shut down, my money taken, and my clients affected.

This is extremely unprofessional and unacceptable for a service that handles business-critical communications. At the very least, I expected transparency, support, and accountability — none of which I received.

I would strongly advise others to be cautious before trusting Mailjet with their email campaigns or payments.

3 February 2026
Unprompted review
Mailjet logo

Reply from Mailjet

Hello, thank you for your feedback and we're sorry to hear about your experience so far. Our support team has contacted you in your ticket. Looking forward to hearing from you.

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