MFP Mailbox Management via POP Authentication and Deletion
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Solution Overview
Problem
Multifunction peripherals (MFPs) without an email receiving function are unable to manage dedicated mailboxes on a mail server, leading to potential overflow and management complications due to their inability to access or delete stored emails.
Innovation Solution
A data communication apparatus with a reading unit for generating image data and a control unit that sets a POP account for the mail server, allowing it to send emails and transmit delete instructions to the mail server to clear the dedicated mailbox, thereby preventing mailbox overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated mailbox is assigned to an MFP for POP before SMTP authentication, then authentication security is improved, but mailbox storage overflow and management complexity increase because the MFP cannot receive or delete emails
Solution Approach 1:
The patent introduces a server as an intermediary to manage email deletion from the MFP's mailbox. The server receives deletion requests from the MFP and executes the deletion operations, acting as a mediator between the MFP and the mailbox contents. This resolves the contradiction by enabling the MFP to indirectly delete emails without having full email receiving functionality.
Solution Approach 2:
The MFP is enabled to autonomously request and execute email deletion operations through its control unit, which sends deletion commands to the server. The system allows the MFP to self-manage its mailbox by periodically requesting email deletion, preventing overflow without requiring manual intervention or full email receiving capabilities.
2Reliability
If a dedicated mailbox is assigned to an MFP for POP before SMTP authentication, then authentication security is improved, but mailbox management complexity increases because the MFP cannot access or delete stored emails
Solution Approach 1:
The server acts as an intermediary that handles the complex task of email management on behalf of the MFP. The control unit on the server executes deletion operations and manages mailbox contents, simplifying the MFP's role to just initiating deletion requests. This reduces the overall system complexity while maintaining authentication security.
Solution Approach 2:
The system implements a feedback mechanism where the MFP periodically sends deletion requests to the server, which then executes the deletion and confirms the operation. This automated feedback loop ensures the mailbox is regularly cleaned without manual intervention, reducing management complexity while maintaining security through POP authentication.
3Ease of manufacture
If an MFP is configured for e-mail sending only without e-mail receiving function, then hardware resources and cost are reduced, but the MFP cannot manage its dedicated mailbox leading to storage overflow
Solution Approach 1:
The server acts as an intermediary that provides the email management functionality that the MFP lacks. The server's control unit executes email deletion operations from the MFP's mailbox, enabling the MFP to maintain a simplified hardware configuration while still ensuring reliable mailbox operation through the server's assistance.
Solution Approach 2:
The server provides universal email management capabilities that serve multiple purposes: it handles POP authentication, manages the MFP's dedicated mailbox, and executes email deletion operations. This multi-functional approach allows the MFP to remain simple while the server handles the complexity, ensuring mailbox operation stability without increasing MFP hardware resources.
Data Source
AI summary
A data communication apparatus which does not have a function for receiving, via a mail server, e-mail sent by an external device includes a setting unit configured to set a POP account for the mail server, a reading unit configured to read a document to generate image data, a sending unit configured to send the generated image data as an e-mail via the mail server after performing authentication based on the POP account set by the setting unit, and a notification unit configured to transmit to the mail server, a delete instruction to delete an e-mail stored in a mailbox on the mail server.