We need to find out after the fact where a mail went and what happened to it
Message Trace in Exchange admin shows what happened to a message, delivered or not, by which rule or policy.
support/email-aflevering/retroactief-mailflow-auditsteps: 4
Try this first
- Exchange admin > Mail flow > Message trace
- Search by sender, recipient, or message-id
- Trace covers 30 days by default, longer with extended trace
- Per result, 'View details' for the rules and policies that fired
When to bring us in
For traces older than 30 days, use extended/historical trace, report arrives within a day.
See also
- Our emails land in spam for some recipientsAlmost always an SPF, DKIM, or DMARC setting that is wrong or missing, or a sender name that mimics a well-known brand.
- Someone reports receiving phishing emails "from us"Read: spoofing. Someone is abusing your sender name, not necessarily your actual mailbox.
- An email bounces (NDR): delivery failedThe NDR text usually states the exact reason. Reading it is step one.
None of the above fits?
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Or skip the DIY entirely
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