Identify Emails sent from outlookclient

Hi,

Is there a way to identify emails sent from outlook client?

I need to add CC to certain outgoing emails from a sync plugin. If I add sync plugins on the creation of emails, email activity creation from outlook client will fail as the email is already sent and no update is possible on the set record.

Is there a way to Identify email record creation from outlook client?

is there any system fields or parameters in the in the Organization proxy so that I can exclude emails from outlook client?

any advice will be much appreciated,

Thank you