text: **2.7.5 Call Home email**
  
  The Call Home feature transmits operational and error-related data to you and IBM through 
  an SMTP server connection in the form of an event notification email. When configured, this 
  function alerts IBM service personnel about hardware failures and potentially serious 
  configuration or environmental issues. You can use the Call Home function if you have a 
  maintenance contract with IBM or if the IBM Storwize V7000 is within the warranty period. 
  
  To send email, at least one SMTP server must be configured. The system support as many 
  as five more SMTP servers for backup purposes. The SMTP server must accept the relaying 
  of email from the IBM Storwize V7000 clustered system IP address. 
  
  Use the management GUI or the IBM Storwize V7000 CLI to configure the email settings, 
  including contact information and email recipients. Set the reply address to a valid email 
  address. 
  
  Send a test email to check that all connections and infrastructure are set up correctly. The 
  Call Home function can be disabled at any time by using the management GUI or the IBM 
  Storwize V7000 CLI. 