We had deliverability problems with our emails and the tool showed that our email domain records were not set up properly. We fixed the problem and our reputation was improved almost overnight.
A good tool for warming up the mailbox. With the help of it, I discovered that I have problems with delivering letters to our customers. In the dashboard, you can see the reputation score for various mail providers - a great thing. I have only recently started using Warmup Inbox, and have not yet solved the problems with my mailbox, but according to dashboard, we are slowly but surely moving toward success :)
I also want to mention the customer support team, especially Lucia, who promptly and intelligibly answered all my questions and helped with their solution!