We do not have email on our LDAP, so from IAM I choose My User Name then Manage account, put a value in the email field and click Save, get this error:
User that bind to LDAP Server does not have update access only read-only.
Release : 10.5
Component : CA Service Virtualization
This is a valid error message because the user that is being used to contact the LDAP server has read-only access. When you make a change to these fields it is updating the LDAP server. The only way to update from IAM is for the user that binds to the LDAP server to have update access.