Backup/Archive mailboxes of organization

[a-musawer]

Hi, everyone

We are using Microsoft 365 in our company of around 150 employees. I am looking for an email Backup/archive solution that can store outlook mailbox of every single employee for around 10 years. Is there any solution to archive emails in SharePoint Online or OneDrive? I tried by creating flow and it was working fine but it has some limitations. Please suggest a solution to store emails (and MS Teams chats if possible) in a central repository.
Regards
Musawer

[#2]

If you need to meet regulatory requirements, best use the built-in Litigation hold/retention policy functionality: https://docs.microsoft.com/en-us/microsoft-365/compliance/retention-policies-exchange?view=o365-worl...
You can even use it for free via the so-called Inactive mailboxes: https://docs.microsoft.com/en-us/microsoft-365/compliance/inactive-mailboxes-in-office-365?view=o365...