Why do Lotus Notes users see this message ("The Internet service certificate is not trusted") when receiving a marketing email sent from a Oracle B2C Service site?

Environment:

Lotus Notes email client

Resolution:

This error message is being generated by the Lotus Notes email client based on the security settings put in place by the Lotus Notes administrator. It appears that Lotus Notes is not enabled to trust the certificate authority and  is requiring a cross-certificate. This is not an issue with the Oracle B2C Service application.

To resolve this issue, contact your Lotus Notes administrator and request that they change the security settings to accept the certificate authority.