I need a way to prevent Magento sending any email to a specific user group.
For example I have a user group called "NoMail"
If a customer is created in that group i wold like Magento to NOT SEND any of the emails (creation, order, coment, credit memo, shipping).
Is there a file where i can set a contdition like
if UserGroup = (NoMail): break else if send email code......