301 Redirects

[Dunjoko]

Looking for the best way to do the following.

Business has changed its name, and has also become a corporate store. The old domain name is now no longer needed as a website page has been created inside the main corporate site.

Obviously i dont want to loose all the traffic that we had and want to redirect them but there is a problem, that im unable to redirect the old domain to the new one due to office 365 installed on the hosting platform, and the old emails will need to run for another 6 months.

I can remove the old site and put a landing page up, but i still need to redirect all the pages to the new site, and there is approx 50+ of them.

My main question is i currently have atleast 50+ redirects already in there due to seo changes over the years, some would go back atleast 5 years, whats a safe amount of time that i can remove the older redirects

And am i going about this the right way so i dont loose all the hard work on rankings etc

[industriestaedt]

Hello friends
Our site has a redirect problem
Please provide a redaction code

site : https://www.tattootalaee.com/