On macOS, links of the form message://message-id are by default supported by the system. Using a tool such as org-mac-link, it is straight-forward to link directly to relevant emails from Orgmode tasks and notes. It does not matter if you have moved the mail around. When you open the link from Orgmode, the relevant email is instantly shown in Mac mail. Fortunately, similar functionality can be configured on Windows and Linux using the Thunderbird mail client, an add-on called ThunderLink, and...
