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Level 2
The question I have is when I look in the nsm:address table for two clients. The most common Status and Error Reason is Status= Quarantine , Error reason= blacklist coming from the Error text = Inbound email bounce ('rule Email_Client_Unsubscribe' has matched this bounce). I don't understand why if this so clearly? looks like an unsubscribe bounce rather than a "Not known at this address" type bounce it has a status of Quarantine and not Blacklist.