Veeam Backup for Microsoft 365 • Re: Processing archive mailbox XXXX completed with warning: Mailbox XXXX is already processed by another job

I'll jump in here also, we have also noticed this across multiple tenants since going to 8.1.2, increasing each day. Error - Processing archive mailbox XXX failed with error: Mailbox is not fully configured

Statistics: Posted by Pete@DPY — Oct 22, 2025 4:17 am

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