The phrase describes the process of transferring an email message, typically saved as a file, from a local storage device to a remote server or system. This often involves utilizing specific protocols and interfaces provided by email platforms or third-party applications. A typical scenario involves saving an email in a standard format, such as .eml or .msg, and subsequently importing that file into another email account or archiving service.
This capability enables a user to migrate email data between different email providers, back up important correspondence for future reference, or share specific emails with others in a standardized file format. Historically, this functionality addressed limitations in early email systems, which lacked robust archiving or cross-platform compatibility. Today, it is essential for compliance, data retention, and ensuring business continuity.