Yigit P.
Suspended my account for 4-5 days, ignored the fixes I already reported
I've been a MailerSend customer for about 4 years and this was the first time I ever needed support — and it was a disaster. My account got suspended over spam complaints, which were actually coming from a contact form on my site with no bot protection, and I was only sending verification emails to those addresses. I explained this clearly to their support team, told them I'd already added CAPTCHA/bot protection to stop it, and that I was losing customers because of the suspension. Instead of checking any of this or reopening my account, support just kept asking me to resend the same information I'd already given them — screenshots, verification reports, etc. — things they could have simply checked themselves by visiting my site. This dragged on for 4-5 full days with my transactional emails completely down. By the time they got around to actually helping, I had already migrated my entire infrastructure to Azure Communication Services. I've cancelled my subscription and requested a refund for the suspended period. If you're relying on MailerSend for transactional emails your business depends on, know that if something goes wrong, support response can be extremely slow and they won't take your word for corrective action — even after years as a paying customer. I can no longer recommend them.
Response from MailerSend, Inc.Aug 28, 2026
Hi Yigit, thank you for sharing your experience. We're sorry to hear how frustrating and disruptive this situation was for you. Protecting the deliverability and reliability of our sending infrastructure sometimes means we need to investigate unusual activity before restoring an account. In this case, we needed to make sure the underlying issue had been fully addressed before reactivating sending. We've also reached out to you personally, as we truly value the 3.5 years you spent with MailerSend and appreciate you bringing this experience to our attention.



