Acumbamail - Plus Exclusive Reviews

I can confirm all the comments about deliverabily, since the beginning of september they have made some change in their sending server. And since that update, emails do not arrive in the inbox (especially gmail and icloud). Whats worst is the support service. They answer with some standard answer without caring about this problem. Because of this I will have to switch to anothe provider.

I had high hopes for this deal and thought I would get solid performance in a lifetime deal. What I find instead is confusing, partly in Spanish, complicated, and hardly usable for me. I need integrations with other programs (WordPress, Zapier) and a clear, understandable structure. I can’t even find list IDs. Everything is hidden somewhere. I am really frustrated. Double Opt-In Emails seem to not be delivered. At least, i can't find any under several testing email addresses. I’m struggling with this system.

The main thing you need from an email tool is the ability to deliver to inboxes.
This one does not do that.

Same list, same email.
- Acumbamail - 1% Open Rate
- Mailchimp - 12% Open Rate

I've been using ActiveCampaign since Acumbamail.
AC is extremely expensive, and it's not that user-friendly.

Acumbamail has a much simpler and more user-friendly / user interface for a fraction of the cost associated. I'll be sticking with Acubamail

UPDATE AS OF 25-09-2025
It now appears to be functioning significantly better than anything I previously experienced regarding deliverability and the platform. However, there are still a few aspects that fall short of my expectations. I remain optimistic that the platform will evolve and surpass all other established platforms in the market...Trusting in their approach and intentions.

Sep 10, 2025
I've deep concerns regarding the email delivery issues I have been experiencing with Acumbamail. Despite my efforts and a correct configuration confirmed by Acumbamail, my email campaigns and automation emails are not getting delivered to the recipients (NOT EVEN IN THE SPAM FOLDER).

I have noticed a troubling trend: very poor (almost none) open rates in comparison with my existing service provider, and more alarmingly, I finally observed that emails are not even reaching to the recipients. Over the past few days, I have observed that campaigns sent from the Acumbamail dashboard have NEVER LANDED in the inbox or spam folders.

To illustrate this point, I shared the proof with Acumbamail, my email report, that had NOT RECEIVED campaign emails sent from Acumbamail.

My entire team's contacts are included in the subscriber list, why is it that no one has received the campaign email? Furthermore, I have multiple email addresses included in the subscriber list, and none of them have received the campaign emails either. This is the core function of any email service provider.

My team has conducted a thorough investigation, checking all possible folders—spam, promotions, and even the trash—yet we have not found any trace of the campaign emails.
This lack of visibility into the delivery process is frustrating and leaves us in the dark regarding the status of our communications.

JUST TO RECONFIRM, Last week again, I sent out another email campaign, but once again, it failed to arrive in my inbox, not even landing in the spam folder.
This consistent lack of delivery raises significant concerns about the effectiveness of my email campaigns, automated triggered emails, and the overall reliability of the Acumbamail platform.

The implications of these delivery issues are profound.
I strongly suspect that the reason my email campaigns suffer from low open rates is that they are not reaching the actual email recipients at all.

This leads me to question the underlying mechanics of the email delivery process.

I have already contacted support, but despite waiting over 5 days, I have yet to receive a response.

Are the issues with false reporting, or is there something more systemic occurring in the back-end of Acumbamail?
Understanding the root cause of these delivery failures is crucial for me to regain confidence in the platform and to ensure that my communications reach to out my audience.

Additionally, I have encountered a peculiar issue with the personalization feature in my campaigns. The placeholder *|FIRSTNAME|* has not been populated correctly, and all my test emails are being sent with the name "Neena." This raises further questions about the integrity of the data being used in my campaigns.

I would like to understand why the personalization feature is not functioning as intended. It is imperative that I receive answers to these questions to ensure that my future email campaigns are successful and that I can effectively engage with my audience.

This raises serious concerns about the reliability of the Acumbamail service.

In conclusion, I am seeking clarity and assistance regarding these pressing issues.

I would appreciate a detailed explanation of why my emails are not being delivered to recipients and what steps can be taken to rectify this situation.

I look forward to Acumbamail's prompt response.