N/APosted on - 02/18/2012
We are using Windows SBS 2003/Exchange 2003 at our server, while the client has Windows XP/7 on the client PC, which uses Outlook 2007/2010.
Last week, our user received an error message with MS Exchange 2007 about an “Expired Certificate” and “Autodiscover.
(our domain name).com error”.
The error messages popped up when the user started Outlook on his computer.
I want to know, why this thing happened.
And what are the solutions for this.
Expired Certificate and Autodiscover Errors in Exchange
It seems that user has been using Exchange 2007 for about a year.When user installed Exchange 2007,there was a self signed certificate.
This self signed certificate is valid for one year only and get expired.So you have to renew the certificate to overcome from the annoying situation.
Please get your certificate from windows PKI or a trusted commercial third party.But you can generate your own certificate.
Steps: type this command "Get-ExchangeCertificate | FL * " .You will get a list and details.Find out the expired certificate.Next command: " Get-ExchangeCertificate -thumbprint “8A2C287CEF5384667045189CEE272ED115D3C575″ | New-ExchangeCertificate " . To accept please type Y.Then you can get details of your new generated certificate commanding: "Get-ExchangeCertificate -thumbprint “7C26C3EF77F5E21971BAAAFCCDE2A553771461C8″ | FL" .If it is needed to bind it to IIS command: " Enable-ExchangeCertificate -thumbprint “7C26C3EF77F5E21971BAAAFCCDE2A553771461C8″ -services IIS" .
Now you can delete your old certificate.To delete command: "Remove-ExchangeCertificate -thumbprint “8A2C287CEF5384667045189CEE272ED115D3C575″ .