RE: Create Opportunities from emails
Hello,
You can implement this using different options, assuming you will have custom already created or can create that as well during these options:
1. A business logic on email create (plugin) which will create opportunity from email, you can have your business logic there to validate some data as well.
2. You can have ribbon button on email page and write js code to convert your email to create opportunity.
3. You can use workflow/dialog to convert your email into opportunity.
Thanks.