Email delist

I am looking for a freelancer to help us delist our current IP from email blacklists. We have an email service provider that is not listed as either Gmail or Outlook, so our situation may require specialized knowledge. We have taken measures to improve our email deliverability, but thus far we have not been able to solve the issue. The main reason for delisting our IP is we have experienced a high bounce rate, spam complaints, and unsubscribes. We need someone who can work quickly to address the problem and get off of the blacklist.

List of websites that made our ip blacklisted.

https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3akeychron.in&run=toolpage