What you’re seeing
- A mailbox move sits at around 95% complete for hours or days.
- The move request ends with a status of FailedOther.
- Move reports mention corrupt items, large items, transient failures or connection timeouts.
- Other mailboxes in the same batch completed normally.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- The move was configured to pause before completion, so it is waiting at 95% for someone to finalize it.
- The mailbox contains more corrupt items than the move is allowed to skip.
- Individual items exceed the maximum size the target will accept.
- The connection between source and target timed out too many times, often because of a proxy, firewall or overloaded server.
- The move is waiting for the source database's replicated copies to catch up, and an unhealthy copy or index holds it back.
Why it matters
Stalled moves derail migration schedules and leave users in limbo, sometimes unsure which mailbox is live. Senior staff and heavy email users tend to have the largest, oldest mailboxes and are most likely to hit corrupt or oversized items, so the problem often affects the people whose downtime matters most. Repeated attempts consume bandwidth and server resources, and a migration that drags on keeps old servers, licenses and support costs running longer than planned.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Will the user lose any email?
Until a move completes, the user keeps working in the original mailbox, so nothing is lost. Where corrupt items have to be skipped, we tell you how many and agree that with you before finishing the move.
Why did this mailbox fail when others moved fine?
Each mailbox has its own history of items, sizes and damage. Older or very large mailboxes are much more likely to contain something the move cannot handle.