This Mail Extension is a partial replacement for the Use BCC Instead C addon, which will not work after TBv70. It offers these features of Use BCC Instead:
- Counts 'To' and 'CC' email recipients and compares the total with the user's limit (in preferences)
- Recipients in mailing lists are counted
- If the limit is exceeded it displays a dialog - send or cancel
- There is an option to send but change all recipients to BCC
- There is an option (in preferences) to disable sending when the limit is exceeded
It does not offer these features of Use BCC Instead:
- Change the default in the compose window from TO to BCC
- A button to change all recipients between TO, CC, and BCC
- An extra column - 'Recipient Extended' - in the thread pane
Requires Thunderbird version 78+