Your certificate library item <certificate name> (id:########-####-####-####-############, description: ,org: <organization name>) expired # day(s) ago" at <date>T<time>. org: <organization name>), Administration > Certificate Management > Certificates Library > an item with the name in the email (<certificate name>) is seen.VMware Cloud Director 10.6.1.1
In Cloud Director 10.6, users will receive an email if there is an expired certificate stored in the Administration > Certificate Management > Certificate Library for the Tenant.
To resolve the issue, the expired certificate needs to be removed from the certificate library.
Administration -> Certificates Library'.
If the issue is related to SAML certificates,please refer to this article : Expired SAML Certificate Email Alerts are received