One of the biggest issues users face after converting Outlook emails is the loss of folder structure. PST files maintain a clear hierarchy with Inbox, Sent Items, and multiple custom folders, which is crucial for locating emails later. When users convert PST to EML using basic or free solutions, the folder layout often collapses into a single directory, creating confusion and making email management difficult. This problem becomes more serious when emails are required for compliance, audits, or legal documentation. Preserving the original structure saves a lot of post-conversion effort and ensures continuity. During my usage, – SysInfo PST to EML Converter Tool accurately retained the entire folder hierarchy, including nested folders, allowing the converted EML files to mirror the original Outlook organization.