The E-mail Listeners application uses definitions to poll the mail server for incoming messages and to send e-mail messages in response. The response e-mail messages confirm that a desired operation was performed on behalf of the user.
Creating e-mail listener definitions
When you create an e-mail listener definition, the mail
server polls the account that you specify in the e-mail listener definition
for incoming e-mail messages. These e-mail messages are processed
according to their content.