Email Visibility Control for BCC Recipient Privacy and Reply
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Solution Overview
Problem
Existing email systems restrict BCC recipients from replying to all recipients, including TO and CC recipients, which limits two-way communication and can reveal hidden recipient identities in forwarded emails, failing to provide effective user-defined visibility settings for maintaining privacy.
Innovation Solution
Implementing user-defined visibility settings through 'green' and 'red' lists within email clients, allowing BCC recipients on the 'green' list to reply to all while maintaining privacy by designating specific recipients for visibility and restricting visibility for those on the 'red' list, enabling two-way communication within predefined groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If BCC recipients are hidden from other recipients to protect privacy, then recipient privacy is improved, but BCC recipients cannot reply to all recipients including TO and CC recipients
Solution Approach 1:
The system segments recipients into different visibility groups (privileged vs. non-privileged) and implements different reply behaviors for each group. BCC recipients are segmented into those who can reply all (privileged) and those who cannot (non-privileged), allowing selective restoration of reply capability while maintaining privacy for others.
Solution Approach 2:
Different visibility and reply permissions are assigned to different recipients based on their classification. Privileged BCC recipients receive special local quality treatment allowing them to reply all, while non-privileged BCC recipients maintain standard hidden recipient restrictions, enabling localized privacy control.
2Reliability
If BCC recipients are hidden from other recipients, then recipient identity security is improved, but hidden recipient identities may be revealed in forwarded emails
Solution Approach 1:
The system introduces an intermediary mechanism (privileged list classification) between the BCC recipient and the forwarding process. Privileged BCC recipients are marked with special indicators that allow them to control their own visibility in forwards, preventing automatic identity revelation while maintaining security for non-privileged recipients.
Solution Approach 2:
The visibility of BCC recipients is made dynamic rather than static. Privileged BCC recipients can dynamically choose whether to include themselves in forwarded emails based on their privileged status, allowing flexible control over identity revelation context-by-context.
3Device complexity
If all recipients are treated equally in email distribution, then system simplicity is improved, but user-defined visibility settings cannot be implemented
Solution Approach 1:
The system segments the recipient list into privileged and non-privileged groups, allowing differential treatment. This segmentation enables user-defined visibility settings by classifying recipients based on their email addresses or other criteria, providing adaptability while maintaining manageable complexity through clear categorization.
Solution Approach 2:
The system changes the visibility parameter for specific recipients based on their classification. By modifying the visibility parameter selectively for privileged BCC recipients versus non-privileged recipients, the system achieves user-defined control without requiring complete system redesign.
Data Source
AI summary
A method is provided for email processing to recipients based on user defined visibility settings. Input of email addresses for recipients in a privileged list and for recipients not in the privileged list is received. An email message is transmitted to recipients in the privileged list and to recipients not in the privileged list. The recipients in the privileged list are able to visibly distinguish recipients in the privileged list from the recipients not in the privileged list. The recipients not in the privileged list are unable to visibly distinguish the recipients in the privileged list. Input of email addresses for recipients in a restricted list and for recipients not in the restricted list is received. An email message is transmitted to recipients in the restricted list and to recipients not in the restricted list. Recipients in the restricted list are unable to visibly see recipients in the restricted list.