I JUST finished my server migration 2 days ago. Because the configuration was such a hassle I just duplicated my setup. Why wasn't this posted like 2 months ago

I JUST finished my server migration 2 days ago. Because the configuration was such a hassle I just duplicated my setup. Why wasn't this posted like 2 months ago when I started? I could have tried this so easily on the new server before moving from the old one. I am using a traditional provider as "frontend SMTP". Decided against doing my own because I need to send and receive emails for job hunting atm.