Specifically how, are you creating that link?
As with other links, just click in the location box at the top of the page and copy it. Then I paste it into an email. Have been doing this for years.
The light dawns, but I just tested on Mail 16.0 in macOS 12.4 and I ran some tests (
green indicates the sent copy can be deleted without effecting the inbox copy red indicates deleting the sent copy deletes the inbox copy.)
- The presence or absence of a link has no effect on the outcome
- mac.com to mac.com
- mac.com to charter.com
- mac.com to gmail
- charter.com to charter.com
- charter.com to mac.com
- charter.com to gmail
CONCLUSION:Deleting the Inbox copy when the sent copy is deleted is a function of the SMTP server and therefore beyond control of the user. Your gimmick is therefore unreliable and you need to figure out a better method. Personally I export messages to DEVONThink 3 and add a notification reminder to that entry but that is overkill unless you have need for a powerful data managment system. but there are a number of different contact management, tickler,
etc systems on the app stoere and perhaps one fo those might work for you.
