Non existent support + low open rates
After using Acumbamail, for 1.5 years - it is 1 taco from us and a refund request.
Unfortunately, I have to confirm the concerns of other reviewers:
1. The support is indeed not responsive. For example, at the moment, we have not heard back from the support team for over 20 days now, despite using email and chat options and sending multiple follow-ups.
2. Open rates are indeed very low - I have by now moved most of my email volumes to other providers. Using the same campaigns and the list of opted-in recipients, the open rates on Acumbamail were at least 3x lower.
3. In 1.5 years, we have not seen any improvements being made to the platform. We asked for clarifications in the beginning, but with no answers, you are just left to figure the unintuitive UX/UI by ourselves. To be constructive, we have also sent our suggestions and feedback during this time, but naturally, we have not heard back.
When they relaunched the deal now, we thought there would be some improvements that would be made prior / after it, but no. If we could refund all the money we spent on this deal, we would, but we can only refund the upgrade.

Alicia_Acumbamail
Mar 31, 2025First of all, thank you for taking the time to share your experience with Acumbamail. We’re truly sorry to hear that your time with our platform hasn’t met your expectations, and we appreciate your detailed feedback.
1. We sincerely apologize for the lack of responsiveness from our support team. This is not the standard of service we aim to provide. We are currently reviewing your case to understand what went wrong and to ensure we prevent similar delays in the future. It would help if you can provide your registration email.
2. We understand your frustration regarding open rates. While deliverability can be influenced by several factors — including list hygiene, content, and recipient domains — we absolutely take these concerns seriously. If you're open to it, we’d love the opportunity to analyze your campaigns and provide more insight into what may have caused the discrepancy.
3. We regret that you haven't seen visible progress on your feedback. Internally, we’ve been working on improvements — including UI/UX refinements and security — but clearly, we need to do a better job of communicating our roadmap and progress to our users. Your suggestions are valuable, and we’re revisiting them as part of our ongoing development plans.
Wishing you all the best,
Alicia