Email migration
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Summary
The process of moving email accounts and data from one platform to another.
Description
Important when upgrading from legacy systems or consolidating services.
Common processes include IMAP, which transfers mailboxes to the target service though a migration map, and Cutover Migration, which involves redirecting all traffic to a replicated system all at once in a "big bang".
A successful migration keeps downtime minimal, retains all history, and ensures secure data transfer.
