Add a link to a message in Mail
When I try to add a hyperlink to a message in Mail the link does not work. I am running macOS 10.14.6 on my iMac. Mail is version 12.4. I am following the same procedure I have used for years: I copy a URL for my message; type the message in Mail; go to Edit>Add Link; paste the copied URL; Click Add. The link shows up in the message, underlined and in blue. It looks exactly like it normally does. But, when I click on the link, nothing happens. The link does not work for my recipients, either. They have to copy and past the link to make it work. I have restarted the computer several times.
Any help is appreciated.
iMac with Retina 5K display, macOS 10.14