Dovecot doveadm mailbox copy during live traffic – missing behavior on concurrent updates
Goal We need to migrate a small IMAP application from one Dovecot instance to another with no service interruption. The plan is to use doveadm mailbox copy to replicate the entire mailbox hierarchy while preserving UIDs, flags, and subscriptions. Constraints During the copy, the source server continues to receive new messages. The command does not hold a glo
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