Create new self signed cet for exchange 2010

From exchange powershell: New-ExchangeCertificate -FriendlyName "SelfSigned Cert" -SubjectName "cn=mail OR remote.domain.com" -DomainName SERVERNAME,SERVERNAME.domain.local,mail OR remote.domain.com,autodiscover.domain.com-PrivateKeyExportable $True Chose to overwrite the existing cert. Next enable the cert: enable-exchangecertificate -donotrequiressl service type: pop, imap, iis, smtp enter the thumbprint for the new certificate. From exchange consoole you can export the cert to be installed on machines.