Simplifying the Migration of Large Exchange Archive Mailboxes to the Cloud: Overcoming Throttling Challenges
Last reviewed: April 2026 — checked against current Microsoft product lifecycle and Exchange Online enforcement timelines. Migrating large Exchange archive mailboxes to the cloud poses a significant challenge due to throttling issues that can hinder the smooth transfer of data. Throttling, a mechanism designed to maintain system performance and prevent overload, often occurs during migrations […]





