Although email is one of the simplest means to send information and documents, it is also fairly insecure. There are many alternatives to improve the security of email communications through the use of encryption. I use a service provided by Proton Technologies AG (https://protonmail.com). If you don't use ProtonMail, I can still exchange encrypted emails with you but your access will be through your internet browser rather than your normal email application.
My firm’s ProtonMail email address is: mark.robinson@mrtipssecure.co.uk.
You can download my contact details by clicking on this vcard.