CSV File Missing Column Still Processes.

I have a SSIS package that processes a CSV style file. For illustration purposes lets say the file is as follows:

R1C1, R1C2, R1C3
R2C1, R2C2, R2C2
R3C1, R3C2, R3C2

So I setup a flat file csv connection with comma as column delim, CR/LF as row delim, etc. Everything works as planned and the package executes.

Now lets say the file comes in wrong and has two columns instead of three. It looks like this.
R1C1, R1C2
R2C1, R2C2
R3C1, R3C2


The SSIS file manager reads the file as two rows vs failing. So it reads the above as this...
R1C1, R1C2, {LF/CR}R2C1
R2C2, {LF/CR}R3C1, R3C2


This is obviously not right. You get similar issues if they send an extra column where data is just added to the last column. How do you get SSIS to fail or error out if the column count is wrong?