msmtp working in SSH but not on php site

I have configured msmtp with my google apps account and got it to work when I send an email with php from SSH (Putty) like so:

php -r "mail('bill.lea@gmail.com', 'Test Email', 'Test email body');"

but when I try to send mail from within my php site it is not working. I am a newbie and maybe just overlooking something simple.

Can anyone help?

This blog post I wrote should solve all of your msmtp woes.

The main issue is that you're using your user configuration file and not the system wide one.

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