Many thought that even they are from programmer background or any Technical background could achieve to implement 101% accurately correct mail flow rules, based on a programmer mindset. However, by having such thoughts will bring risks to yourself and the company itself.
*Note: If you’re not familiar of the product, then please try not to play around with it in production environment. Always, start off with research and lab testing.
Mail flow rules brings huge impact to your organization’s mail flow with slight incorrect configuration of a rule. Example, mails send to only Department B, aren’t suppose for Department A to be view but then Department A somehow able to view mails that is for Department B. However, this causes data leak within organization.
Is best to spend time to understand the product than rather getting yourself in trouble.
Reference
Sabrina Kay's Blog 