White Papers for Health Insurance Portability and Accountability Act (HIPAA)

Email Archiving: Data Capture Methods

ZL Technologies

Several data capture methods have been used to ingest email from mail servers, each with differing advantages and disadvantages. Some methods are useful in small environments but quickly become problematic when large email volumes are encountered. Others are useful only for specific mail servers. Leading email archival applications will utilize multiple methods to support different mail servers and leverage rich archival features for specific mail servers to full data capture and ensure scalability.
This document describes the various methods used for data capture and the associated advantages and disadvantages. The methods include:
• Full MAPI
• Exchange Transaction Log
• SMTP Gateway Capture
• Pull Journaling
• Push Journaling

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