In some conditions email's are working properly.
- Email is working on user registration.
- Reset password etc..
But not working in some cases
- New order creation
- Sending emails from the order page in the admin panel.
Is this something related to server, I've tried to log the errors but it is empty.
Server: Ubuntu
Magento Version: 1.9.1.0
Please suggest if someone had the same issue, I can see someone had the same issue in some other community but no one answered for that question.