No Steve, that doesn't solve the problem I described. I'm honestly not sure if you actually read my initial post. Please read it again carefully. Passphrases have nothing to do with this. When my smartcard is not inserted into my MacBook, GPGTools prompts me to insert it in order to view encrypted mail messages. This is what I would like to suppress, because viewing a thread of encrypted messages in Mail.app shows a prompt for every single encrypted message in that thread. Once the first prompt has displayed, you have to click cancel once for every encrypted message in the thread, which is frustrating, cumbersome and a waste of time.
I wanted to test what you suggested, but I found that option to be enabled already. It has no effect on my problem.
If you have a smartcard available to you, please try to reproduce this problem, you'll see what I'm talking about.
Luke Le on 14 Dec, 2017 12:43 PM
thank you for your patience.
We have created a ticket for your problem. Unfortunately it is very hard in Mail to distinguish between if one message or more than one message was selected, at the point where the decryption occurs. We have been looking into that again and again over the years, but have yet to find a satisfying solution.
While disabling automatic decryption is certainly an option, it is far from ideal. It will take us a little longer to figure this out.
You will be automatically notified, if we make progress on the connected ticket.
Should the discussion be closed in the meantime, it will be re-opened once we have a solution for the issue.