Budget: 1500 UAH Deadline: 3 days
Good day, the problem is with the reputation of the IP or domain, or with the content.
Plan: Google Postmaster Tools - MXToolbox blacklist - mail - tester.com - analysis of Postmark logs (bounce, complaints) - check shared/dedicated IP.
What is the current volume of sending and which providers are the most problematic - Gmail, Outlook?