Started with the News Letter Module. The news will be delivered using RSS feeds. So by this the users will actually be able to apply for the real jobs.
Got problem in sending the mail to the user. First, sendmail was installed for this. But mail cannot be sent to a gmail id using sendmail, reason being that it does not make localhost the smtp server.
Then I used postfix. Through postfix, we were able to send but gmail requires some certificates. The postfix does not provide ca certificate. So we used msmtp which provides all the certificates- ssl and ca.