The site does not send emails for notifications:
1. when a customer orders books in our bookshop, the site is supposed to send an email to another mail for the orders.
However, it does not send any.
2. the site does not send notifications when someone answers a thread.
3. the site does not send a confirmation email when a member signs up.
This is not a mail server issue. The host has already looked at it. It has something to do with the codes.
Need a coder to fix this asap.