Human process errors, resulted in poor support
Below this is my original comments,
I received an apology today and a good answer from mailjet. I will give them a go with a different project, the reasons given are OK and likely warrant some modifications to process.
Customer care is super important, and yeah in fairness people can make mistakes and I too can be frustrated. I've nudged the rating up to 3*.
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I terminated the account, onboarding issue went around in circles from 2nd November until 15th November, due to incompetent ticket handling and lack of technical knowledge by their staff.
Ironically they kept telling me my domain was not reachable, but by logical deduction, I figured the issue was related to reverse DNS lookup, ptr, undocumented by them.
I took that issue to cloudflare automation for confirmation, and 20 seconds later, everything was fine.
I went on to interlink a different TLD domain and asked this to be used instead, but despite that they didn't validate the account and parked the ticket.
I provided this info to sinch but they ignored it and today I ditched them for mailtrap.
Validation started on the 2nd November, Escalation and requests for help, were ignored, and their team muddled information,
From the start I informed them this was for transactional purposes. but an Indian chap, asking about what my intent was for the future, to provide as much detail as possible.
Logically, I told them initially that this would be case for first few months, then I would consider marketing, I also told them I would trial this using a bulk run on personal email, from people that gave me express permission in person for updates. But their staff misinterpreted this too.
At no point did they try to fix or resolve the issue, or even read what I wrote, instead they arrogantly insisted that my domains weren't reachable,
however the actual root cause was the TLD registry has an archaic setup and specifically isn't supported by many providers including cloudflare,
(who did point out why and were able to confirm my suspicions)
On the 12th November, requested escalation and support and was assured my information had been passed to the relevant team.
I logged in Saturday 15th morning and found the ticket parked. I re-opened it and got an email saying my issue wasn't forgotten and would be dealt with soon,
I decided then I would give them 12hours, and inbetween tested and validated using a non Sinch competitor, this was easy, took minutes, and all is now working.
I logged back into my account just before editing this review, 16/11 and find no change or notes on the ticket.
I then removed all data and terminated the account.
The problem I have here is this would have worked very quickly had I used a common TLD, and then this would have locked me into their system, as naturally I would have been perfect for upgrade and upsell.
Here is why I am advising people to avoid this firm,
should I have run into tiny technical issues their customer support are absolutely terrible, and their first line technical knowledge is equally bad.
The ticket agent came across as very passive aggressive and after 2 weeks without any meaningful progress, I wasn't prepared to wait longer.
I terminated the account and don't recommend this firm, they have a poor technical understanding, they don't know very much about GDPR, they don't have competent support, and their process ask for prospective development detail which made a simple transactional sign up test into a barrage of emails and discussing marketing which was irrelevant, all the time missing the point that their system and validation was incorrect and poorly documented.
November 12, 2025
Unprompted review