EDIT: Working fine from the very next day!
OS: Cent OS 6 32-bit with Virtualmin Updated
All features are working fine except i don't receive any mail for the scheduled backups though i have not marked "Send mail on failure only". I searched, i tried but unable to find the issue. Your help will be highly appreciated. It doesn't even get delivered in Spam folder. Mails from my Wordpress installations works fine.