Your company's email server has been filling up employee's email boxes with advertisements for things they did not request. You have been asked to research how to stop these types of messages from getting to your coworker's email client software. What will you recommend to your supervisor

I would recommend the supervisor to not allow third party ads to run on the site and not use google ad sense and instead rely on other reliable sources.

Explanation:

In the modern website environment often the credibility of a website is dictated by the way it looks to the people that are looking up for it and in that sense if the website has obscene ads it would look bad and unprofessional.

It is important for a work website to be either free of ads or have specifically calibrated ads that are designed to go with the website itself.

I would suggest the company to not run the unmasked and the uncontrolled ads and to use the parties and hosts that allow the company to make sure who advertises on their platform.