Universal email migration toolkit for any provider to any provider. Use when migrating between Yahoo, Zoho, ProtonMail, iCloud, on-premises Exchange, or any IMAP-capable email service. Covers decision trees, backup/export procedures, IMAP connectivity testing, troubleshooting, and provider-specific configurations. Essential for IT professionals handling diverse email migrations beyond Google/Microsoft ecosystems.

通用电子邮件迁移工具包，支持任意邮箱服务商之间的迁移。适用于在Yahoo、Zoho、ProtonMail、iCloud、本地Exchange或任何支持IMAP的邮箱服务之间迁移。涵盖决策流程、备份与导出操作、IMAP连接测试、故障排除及服务商特定配置。是处理超越Google和Microsoft生态系统的多元化邮件迁移任务的IT专业人员必备工具。