I am installing a new mail system on my site and for the message body text i dont want to store it using MySql as it will just slow my server down, so i am thinking of storing it as .txt files on the server and using MySql to point at it and using
file_get_contents('file.txt'); to open it and maybe using BASE64 to encode the contents so its not plain text.
Would this be the best way to store the text or is there a better to store it?
You are taking it all wrong.
Storing the message body in mysql will not slow your server down.
Sure. Store it in the database. That is what databases are for.