Handling Malformed Nested Emails for Tier-2 Export
This document explains how Enterprise Archive handles historical emails migrated from archive solutions, and containing malformed nested emails during Tier-2 export flow.
What is a Malformed Nested Email?
A malformed nested email (P2) refers to an email embedded within a journal email (P1) that Enterprise Archive cannot process correctly. This can happen due to corruption or missing information in the nested email.
What Happens During Export?
Even if the nested email is malformed, Enterprise Archive will still attempt to export the main journal email. Here's a breakdown:
Successful Export:
If the nested email is parsable, the parsed email is exported successfully.
Malformed nested email:
Enterprise Archive exports the main journal email.
A JournalExtractionFailures.csv file is created within the Summary file (Zip). This file indicates the malformed email export failure and includes relevant IDs for reference.
The summary file will be updated with a new line item named "Journal Count" under the "Snapshot Counts" section. This line item will reflect the total number of emails exported as journals due to unreadable inner emails.
A status code is recorded in the compliance audit collection for this scenario.
Who Benefits from This Functionality?
Archive Administrators: They can export malformed journal emails for further action.
Case Managers/Reviewers: They can access the main journal email even if the nested email cannot be processed.
How to Identify These Exports
Exported zip files containing malformed nested emails will include a JournalExtractionFailures.csv file for reference.
Tier-2 Export Scenarios for Journal Emails with Malformed Nested Emails
|
Scenario |
Input Mail |
Participant API Response |
Nested Email Extraction |
EML Export |
PDF Export |
Description |
|
Valid Journal Email |
Correctly formatted journal email (contains header or message-id indicating journal) |
All participants from the journal email and the nested email. |
Extracted successfully |
Exported as extracted email |
Exported as transformed email |
Successful export of both journal and inner email |
|
Regular Email |
Correctly formatted regular email |
All participants from regular email |
Not applicable (no nested email) |
Exported as regular email |
Exported as transformed email |
Successful export of regular email |
|
Journal Email Missing Identifiers |
Archived email missing required journal identifiers (header or message-id) |
All participants from regular email |
Not applicable (not a true journal email) |
Exported as archived email (appears like journal) |
Exported with original email as EML attachment |
Export of unrecognized journal email as regular email with attachment |
|
Regular Email Incorrectly Sent as Journal |
Regular email with journal identifiers (header or message-id) |
All participants from archived email |
Not applicable (not a true journal email) |
Exported as regular email |
Exported as transformed email |
Export of unrecognized journal email as regular email |
|
Valid Journal Email with Malformed Attachment |
Correct journal email with unreadable nested email |
All participants from journal email |
Fails due to malformed attachment |
Exported as archived email (appears like journal) |
Exported with original email as regular attachment |
Export of journal email with unreadable nested email as attachment |
|
Malformed Journal Email |
Unreadable journal email (contains journal identifiers) |
Exception (parsing error) |
Not applicable (unreadable email) |
Exported as archived email (uncertain type) |
Not applicable (failure) |
Record failure in errors.csv |
|
Malformed Regular Email |
Unreadable regular email |
Exception (parsing error) |
Not applicable (unreadable email) |
Exported as archived email (uncertain type) |
Not applicable (failure) |
Record failure in errors.csv |
|
Valid Journal Email without Attachment |
Journal email without inner email (P2) |
All participants from journal email |
Fails due to missing inner email |
Exported as archived email (appears like journal) |
Exported as transformed email |
Export of journal email without inner email |