Hi, i hope this is posted in the right place. Basically, i have a problem with my newsletter mod. I have used it before and it all worked fine, but now i get this error.

home/sites/mywebsite.co.uk/dead.letter... Saved message in /home/sites/mywebsite.co.uk/dead.letter

Email Error: Could not instantiate mail function. Please check Admin->Configuration->Email Options->Email Transport.

Email transport is set to PHP which its always been.

I looked for a dead.letter file but i cant find one, is it supposed to be in my publichtml directory?

Any ideas to what this might be?

My PHP Version: 4.4.9 zencart 1.38a

Many thanks