What’s Microsoft’s reputation decay speed?

Microsoft's reputation decay occurs faster than some providers when negative signals emerge. A spam complaint spike or sending to traps can damage reputation within days, with effects lingering for weeks. Conversely, reputation improvement from good behavior accumulates more slowly.

This asymmetric decay means mistakes have outsized impact. A single bad campaign sending to a purchased list can undo months of reputation building. Microsoft's systems respond quickly to protect users from emerging threats, treating sudden negative signals as serious indicators.

Recovery requires sustained good behavior over time. There is no quick fix for damaged Microsoft reputation. Reducing volume, improving list quality, and maintaining low complaint rates gradually rebuilds trust. Monitor SNDS data to track recovery progress and avoid premature volume increases that might retrigger filtering.