Email Verification System for Sender Identity Mismatch
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Solution Overview
Problem
Existing computer security tools are inadequate in detecting and blocking email scam attacks, which can pass through mail transfer agents and other security devices without being flagged or quarantined, consuming technical resources and posing a significant risk to enterprises.
Innovation Solution
An email verification system that stores names and associated email addresses, flags suspicious emails with sender mismatches, and requires verification before delivery, using configured methods such as text messages or verification applications to ensure legitimacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing mail transfer agents and security devices are used to filter emails, then normal email transmission is maintained, but malicious email scam attacks pass through without being blocked
Solution Approach 1:
The patent applies preliminary action by implementing sender verification before email delivery. The system checks whether the sender's email address matches their claimed identity in advance, and only allows emails from verified senders to be delivered. This prevents malicious emails from unverified senders from passing through the system, while maintaining normal transmission for legitimate emails.
2Reliability
If all incoming emails are blocked for verification, then security is improved, but normal email transmission efficiency deteriorates
Solution Approach 1:
The patent applies local quality by implementing selective verification based on sender characteristics. Only emails from senders whose addresses do not match their claimed identities undergo verification blocking. Emails from verified legitimate senders pass through without interruption. This localized approach maintains high security for suspicious emails while preserving normal transmission efficiency for legitimate emails.
3Reliability
If sender verification is implemented for all emails, then malicious emails are blocked, but device complexity and operational overhead increase
Solution Approach 1:
The patent applies partial action by implementing verification only for emails where the sender's email address does not match their claimed identity. For emails from verified legitimate senders, no verification overhead is incurred. This partial verification approach provides sufficient security against spoofing attacks while minimizing device complexity and operational overhead for normal email traffic.
Data Source
AI summary
An email verification system is described. The email verification system stores names and associated email addresses. An email is received that has a sender name and a sender email address. If the email verification system determines that the sender name matches a stored name but the sender email address does not match with an email address associated with the stored name, the email is prevented from being transmitted to its recipient unless the email is verified as being legitimate. The email verification system transmits a request to verify the email via a configured verification method. If a response is received that verifies the email as legitimate, the email is delivered; otherwise the email is blocked.