On My server I was verificate the certificates with command Get-ExchangeCertificate and I got some certificates. But I´m not sure which certificate I need to renew, because there are two of the same name.
I need renew because when I open ms outllok the folow message appears ( The Security certificate has Expired or is not yet valid)
Please verify the .xlsx file Certificates - Tmunbprint.
Can you help me please.