The easiest way to migrate multiple IMAP accounts using CSV is to use a tool that supports Batch/CSV migration, allowing administrators to process several mailboxes together instead of configuring each account manually. DRS Softech IMAP Migration Tool supports Batch/CSV mode, where multiple source accounts can be mapped and migrated efficiently to Office 365 or other supported destinations. Users can provide the required mailbox details, including email addresses, passwords or app passwords, IMAP server information, port numbers, and security protocols, then connect multiple accounts through the CSV-based workflow. The software also provides a mailbox tree preview to verify folders and email counts before migration. Additional options such as date filtering, advanced mail filtering, duplicate removal, and skipping previously migrated data can help manage large migration projects more efficiently. This approach is useful for IT administrators and businesses moving numerous mailboxes because it reduces repetitive manual work while providing a structured way to manage multiple accounts.
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