How to track conversions for orders that come directly to the mail?

Question

Google Analytics

Good afternoon!
At the moment, many orders on the site come directly through e-mail.
We set the goal - copying mail on the site to the clipboard. But it doesn't work very well.
We do not want to delete the email address from everywhere.
Maybe there is some way to track mail by the ip address of the sender? or something else?

Answer 1

Put URLs in click-tracking containers (or better, "onmousedown" events) and notify the metric on click. The mail must be a link to "mailto". Propagation will do its job.

Answer 2

For each user, write an individual address: support-####@firma.ru - and this id will be used to understand the source from the analytics.