Microsoft Exchange could not load the certificate with thumbprint of E53D989B8A448375E903A0AB7CCC823A42B0F076 from the personal store on the local computer. This certificate was configured for authentication with other Exchange servers. Mail flow to other Exchange servers could be affected by this error. If the certificate with this thumbprint still exists in the personal store, run Enable-ExchangeCertificate E53D989B8A448375E903A0AB7CCC823A42B0F076 -Services SMTP to resolve the issue. If the certificate does not exist in the personal store, restore it from backup by using the Import-ExchangeCertificate cmdlet, or create a new certificate for the FQDN or the server enabled for SMTP by running the following command: New-ExchangeCertificate -DomainName serverfqdn -Services SMTP. Meanwhile, the certificate with thumbprint 0186F48794A78EA5E7CE3F9351B3E394D1AF63A7 is being used. I have recreated self signed certs in the EAC with the server FQDN as well as the externam FQDN, but this did not solve my issue, I am very new to exchange and am learing as i go so any help with this issue would be much appriciated.
Thanks
Devin Berard I.T Support Renfrew Victoria Hospital, Renfrew ON berardd@renfrewhosp.com