Email Server Spam Prevention via Dynamic White List
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Solution Overview
Problem
Existing email servers face challenges in preventing spam emails and ensuring secure communication, as previous solutions either obstruct rapid communication or lead to unintended exposure of email addresses, particularly when dealing with mailing lists and variable email addresses.
Innovation Solution
An email server system that includes email receiving and filtering mechanisms to determine whether to deliver or destroy emails based on addressee and sender addresses, using databases to manage communication mate email addresses and prevent spam, while also replacing or eliminating email addresses to maintain privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a white list system is used to prevent spam emails, then email security is improved, but communication efficiency deteriorates due to manual management requirements
Solution Approach 1:
The system automatically manages the white list by having members register their own email addresses and having the server automatically update the white list database, eliminating the need for manual administrative management while maintaining security
Solution Approach 2:
The server pre-generates variable email addresses for members before they are needed, and automatically configures the white list entries in advance, so that when communication is needed, the setup is already complete and immediate
2Loss of information
If variable email addresses are used to protect privacy, then email address exposure is reduced, but communication complexity increases
Solution Approach 1:
The server acts as an intermediary that automatically manages the mapping between variable email addresses and member identities, handling the complexity of address substitution transparently so that users experience simplified communication without direct exposure of real email addresses
3Reliability
If manual white list management is required, then email security is maintained, but time consumption increases
Solution Approach 1:
Members independently register their own email addresses with the server, which automatically adds them to the white list database, eliminating the need for administrators or other users to manually manage white list entries and saving significant time
Solution Approach 2:
The server automatically updates the white list database in real-time as members register or update their email addresses, so that security configurations are already in place before communication occurs, eliminating setup time
Data Source
AI summary
The invention provides an e-mail server, with which e-mails are communicated between a member belonging to the server and a communication mate of the member under the protection of function or performance for preventing SPAMs from being received by an improved white list system and e-mail addresses can be surely prevented from undesirably leaking out. The server comprises received e-mail filtering means for forming destruction judgment and delivery judgment on a received e-mail for causing the received e-mail to be delivered in accordance with a delivery permitting decision and transmission e-mail filtering means for conducting processing on a transmission e-mail by which a group of letters representing an e-mail address discordant with an addressee's e-mail address contained in the transmission e-mail is replaced with another group of letters representing an open e-mail address or eliminated.