If the email option is enabled, CA approval requires MX_SMTP_HOST to be configured.
For Windows, add the following to enovia.ini:
MX_SMTP_HOST=MailName
For UNIX, add the following to the mxEnv.sh under rmi/scripts:
where MailName is the mail for your company, for example, engmail1.mycompany.net
engmail1.mycompany.net