Mailjet Reviews 3,689

Support was great when we had an issue with some leaked credentials. Very clear communication and also very helpful.
The only thing that could be improved is visibility in the interface so that I could see the issue earlier.

I was looking for alternatives for my current transactional email provider, and I found Mailjet recommended online. I did not expect to be met with such hostility after creating my account.

I literally got redirected to a very off-putting message "Unfortunately we're not able to grant you access to Mailjet's services because our system detected that you're presenting a potential risk to our deliverability or your activity may not be compliant with our Acceptable Use Policy. " as soon as I pressed the "Confirm account" button from their email (which also ended up in my spam folder, mind you! Nice deliverability there, Mailjet!).

Do not bother with this service, there are better alternatives out there.

Whenever I've had a problem, their customer service has solved it for me right away and with impeccable manners. The platform has its pros and cons like everything else, but it's reassuring to know that when you have a problem, you can talk to real people who know the program well and can help you directly.

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 words, problem solved quickly... I hope I won't have to contact them for further issues, but the support is very great!

They threw away my old campaigns that I needed for reference. Doesn't cost them anything to keep them.

Pricing structure is way better than the chimps

Pathetic support services wasted our client time and money successfully and created bad image for our company. Take all of the support tickets and wipe Your A with it.

I received help in resolving my question. There were several steps involved in completing the task, but we solved them one by one. It went very well. Friendly and helpful.

Quick response, accurate info and great support experience.

My API key leaked and my account was used for sending some spam. I immediately contacted the support to inform them, and they did not ask me to do any specific action.
Few days after that, without any warning, my account was suspended with no alert.
The support agent that helped me was very polite, but the issue took 6 days to be resolved, during which I lost access to all of my templates, which had a big impact on my business.

Other than that the tool is really nice, works great.

My support journey on this occasion started via online chat - Mihael was extremely helpful looked into the issue I was experiencing and was able to advise what the problem was. A couple of quick tweak from our IT support and the problem was all fixed. Mihael was proactive in following with me to ensure that we had been able to make the necessary tweaks to resolve the issue. GREAT SUPPORT from Mailjet as always - Thank you Mihael

Excellent support from Théo! Reliable handling of all outstanding issues, always solution-oriented and with exceptionally positive, motivating communication. This makes collaboration a pleasure – highly recommended!

If you encounter any issues, Mailjet provides outstanding assistance. Their responses are fast, and the support is clear, precise, and highly effective.

The support (and Theo) is always available to help us in case of prob.

After I started the activation process, the Mailjet team just sent me one message for more information:
1. What will be your monthly sending volume?
2. Could you please describe your business and the services you provide?
3. How will they be triggered?
4. Could you provide a sample of these emails?
5. Questions on Marketing/Newsletters/Bulk Messages.

All these are pretty standard questions when signing up for transactional email services. So, I told Mailjet that I will only be using the account for transactional messages, not marketing/newsletters/bulk messages, and even provided the requested screenshot of a sample email (Can only provide 1 screenshot per their submission form).

Then, the next day, my activation request was rejected. No explanation of the rejection because of the usual "for security reasons so we cannot disclose" rhetoric. They did not even bother to reach out to me for further clarifications and just simply rejected the activation from ONE interaction.

I really wonder if Mailjet can truly filter out spammers with their simple questions. I could have easily used AI to churn out the perfect answers that they are looking for and again use AI to design the perfect email template that they want. But I did not do that and gave my honest human answers and it did not pan out well.

Looking at all the 1-star ratings here, I can really see that it is a good thing I did not use Mailjet's services. Or else I will be in for even more headaches. After this experience, I searched about Mailjet and saw this on reddit r/SaaS post titled "Mailjet, Sendinblue, Rapidmail or Flowmailer":
"Having experienced mailjet, they are tricky :
it's a real shame to realize on the free plan that Mailjet intentionally and forcefully always saves contacts and prevents them from being deleted from the contact list. This seems designed to limit the use of the send API. Ultimately, the email sending limit isn't 3,000 on the free plan but only 1,000 emails as over 1000 contacts you cannot send any new email and that you can only delete contacts manually one by one (even with curl it is still by single item). This feels like a dishonest way of forcing users onto a paid plan. It doesn't bode well for a long-term relationship, which is why we've decided to switch to another service provider for growing. Tired of this provider trying to trap you a way technically you cannot get out easily and have to pay always more."

No idea whether it's true or not but users using or intending to use Mailjet's free service be aware.

Excellent support! I had created a segment for a campaign to go to those who had opened a campaign in the past 270 days. I discovered that a few people did not receive the campaign. Mailjet staff researched it and let me know that I needed to add an "or" condition for those who had clicked on a campaign in the last 270 days. I appreciate the quick follow up by Mailjet.

Lara and Ajay were so cooporative on activating my account. Mailjet is my #1 go to mailing platform which have a wide variaty of api calls and customizations. All my companies are utilizeng it as well my client.

This has been, without exaggeration, the worst email service we’ve ever used.

In December, we updated our card details because our old card was replaced with a new one. Shortly after that, Mailjet blocked our account - and we didn’t even find out directly from Mailjet. We only discovered it in January when our customers informed us that they were not receiving our emails.

When we contacted Mailjet support, we were first told the account was blocked due to a high hard-bounce rate. That was simply false. We checked the Mailjet dashboard and the hard-bounce rate over the last six months was only 0.27%. Proof was provided.

Then Mailjet support changed the explanation and claimed the account was blocked because an invoice hadn’t been paid. Again, incorrect. Mailjet charged for both December and January, meaning the invoices were paid. Proof was provided here as well.

After that, Mailjet unblocked the account - but the problems didn’t end there. Mailjet blocked our server IP address, and the software could not send any emails at all.

Once again, the issue was escalated to Mailjet support. This time the explanation was that the IP was blocked because there were attempts to authenticate to the Mailjet API using the wrong credentials. That makes no sense. Nothing in the application changed, and it was verified that the exact same API credentials were used as before.

Mailjet’s support process was painfully slow and unhelpful. Days were wasted trying to resolve an issue that should never have happened in the first place, and it still wasn’t fixed. In the end, there was no choice but to migrate to a different provider.

This entire experience was unacceptable - misleading explanations, service interruptions, and wasted time.