One of the best tools to import BigRock emails to Office 365 is the CloudMigration IMAP Backup Tool. It supports direct migration from any IMAP-based email account, including BigRock, to Office 365. The tool is user-friendly and allows you to migrate multiple emails at once while keeping the folder structure and attachments intact. Just enter your BigRock email credentials, select Office 365 as the destination, and start the migration easily without any data loss.

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