question about certificate

[Plurnay]

Hi there Zimbra Administrators,

I have a few questions on how to make a new certificate for Zimbra
The one we have is outdated since September 09

The are 3 things I want to know before I create a new one...

1. Can I backup the old certificate so that if I made a mistake I can go back.. and if so how?

2. I don't even know what kind of certificate we have right now?
Is it Self-signed, CSR or Commercially signed? and how can I know...

If I go to the Admin console then go to certificate and view certificate I see it but its doesn't say what kind of certificate its is?

3. To create a new one its as easy as going through the admin console and just follow the instructions...

Thanks everyone,
I just want to make sure Its work because we rely a lot on our emails

Paul

[Plurnay]

anyone????
i need some advise