Help with outlook email deliverability issues

Hi there.

Budget is set to £100 as a placeholder as we will look for experience over anything else.

We use Infusionsoft to send marketing emails to our prospects and emails to clients to deliver services.

In the past we have experienced deliverability issues with Outlook - so we did everything we could to remedy the problem including paying for our own dedicated IP with Infusionsoft which seemed to fix the problem for a short while.

Problems are now back, at we believe to be domain level, as not only are Infusionsoft emails not being sent, but also emails from Gmail too.

My developer is currently creating a list of past actions we have taken to try and remedy this in the past, to help you understand our situation.

We're looking for a consultant with experience dealing with Microsoft deliverability issues. Is this something you'll be able to help with please?

Look forward to hearing from you
Best Wishes
James