hi,I have one question about the Exchange 2007 certificate installed in deploy process.I have installed Exchange 2007 and I am using the certificate installed buy Exchange.My question is how long time the certificate is valid? Must I change in a year?Thanks for while.Luiz

"Self-signed certificates that are created by Exchange expire in one year. The internal components that rely on the default self-signed certificates continue to operate even if the self-signed certificate has expired. However, when the self-signed certificate has expired, events are logged in Event Viewer. It is a best practice to renew the self-signed certificates before they expire."http://technet.microsoft.com/en-us/library/bb851505.aspxRegardsJames

Hi James,thank you for your response.Best Regards.Luiz

I recently ran into this issue. Because we have Entrouge users that use our front end servers, they started to get certificate errors. To solve this problem, we got certificates from a TLS for three years. Here are some resources that I used to get this to work. http://technet.microsoft.com/en-us/library/aa998840.aspx - Creating a Certificate or Certificate Request for TLShttp://technet.microsoft.com/en-us/library/aa998327.aspx - New-ExchangeCetificate Helphttp://technet.microsoft.com/en-us/library/bb124424.aspx - Import-ExchangeCertificate Help

Hi Mike,thank you for your help.Best Regards.Luiz