To protect information sent by email from being intercepted, an email can be encrypted. We use encryption for email sent between email addresses in the company e.g. from Mike@ourcompany.com to Andrew@ourcompany.com.
But is it possible to encrypt email sent from Andrew@ourcompany.com to a gmail account (e.g. firstname.lastname@example.org)? And what does the gmail account need to have to be able to read the encrypted email?