• No need to buy additional servers to run the mail server(s).
• No expensive maintenance contracts for IT support for said server(s).
• Should not have to worry about maintaining data backups (on and offsite).
• Security of the mail servers is the contracted hosting company's issue/problem to deal with.
• Given that many users you'd probably need a decent reliable internet connection to run the server in house.
• Faster access to e-mail since it is local.
• Configure the server the way you want.
• easy access to diagnostic logging.
• Backups are done for you as is replication

Backup mail server for only Rs 10,000 / Year.
limited time offer 50% off Now only Rs 5000 / year