First of all, thank you for this incredibly detailed feedback. Once again, thanks to HN.

I’ll try to respond to each point as thoroughly as possible.

Mailhub is a tool primarily intended for technical teams to use for transactional emails, although it's indeed possible to send any content you want.

There is tracking for both opens and clicks. Technically, it's similar to what the competition offers. I admit that we haven't yet tackled more specific issues like Safari's anti-tracking technologies.

We’re currently working with simple technologies. We’re still in the early stages.

We don’t have a campaign scheduling feature, as we’re focused on transactional emails, which are typically sent via the system in response to user actions. That’s why we haven't implemented the suite of tools you mentioned.

As for GDPR compliance, it's up to the developers themselves to ensure they comply. We have several ideas to make this easier, and it’s in the pipeline.

Regarding MJML, I completely share your view and am not trying to challenge that technology. I'm simply offering a similar tool (which simplifies email editing) but from a different perspective.

We’ve taken note of all your very pertinent remarks. Thank you for these valuable insights; they’ll help us determine the future of Mailhub.

Thanks!