title: Can I use my web server as mail server?
body: <p>I have a dedicated Linux web server where my website is running like www.example.com.
  Now I want to start another service for my users and want to give mailing features like Gmail and Yahoo mail.
  I want to give facility to my users to create email IDs as they create on Gmail or Yahoo Mail and use it as their email address like XYZ@example.com or ABC@example.com.
  Is this possible for me to use my dedicated web server as mail server too,
  or I need to hire a new specific mail server for this purpose.</p>
  
  <p>Also, if I can use my server as mail server and can give IMAP and POP like features then what are the PROs and CONs in that?</p>
  
  <p>My hosting company says that I have facility to create unlimited email addresses
  and I have created a few for mt like support@example.com and feedback@example.com
  and I am getting emails on these IDs.</p>
  
  <p>Is that mean, my hosting already have setup a mail server for me (the same I mentioned in my question and want to setup)
  Or this is just for me to use and manage my website and I can not share these email addresses with my users by giving an email service.</p>