The front end server includes communication protocols that are used to communicate from one system to another system. This includes:

• Mail User Agent (MUA) - This allows easy delivery of mails from one user to another user and allows the user to communicate with one another as well.

• Email Messages- This includes composing of the mails, managing the mails and taking certain actions on them, sending them to other person, and receiving mails from other people with whom the communication is associated.

• Embedded services- This includes addressing, packaging, signing, and encrypting outgoing messages and it is a secure method that doesn’t allow third party to hinder in transferring of the message. This also includes the decrypting service that takes the message and displays it.

• Polling server updates such that it will be available to all the clients at one go.