In Exchange 2010 It is well known that in order to communicate securely, each Microsoft Exchange Server service uses a secure connection using certificates; these certificates ensure the IMAP connection (Internet Message Access Protocol), POP (Post Office Protocol), SMTP (Simple Mail Transfer Protocol), IIS (Internet Information Services) and UM (Unified Messaging). And we will take special care to keep them renewed or valid. On Exchange Server 2007 this renewal process was carried out with three commands in PowerShell and now they have implemented the possibility of doing it through a wizard!