Dear all,
I created a certificate in zimbra for 3 years (self signed), and the export it to client (using for windows) using configuration in wiki :

Free/Busy Information in Outlook - Zimbra :: Wiki

but in windows it's only valid for one year, I already running the command again but still the certificate using the old time period

how can I get the valid certificate for my client in outlook, or this kind of certificate valid only just for one year

thank you for help

Samuel Sappa