Northern Trail Outfitters has configured Reply Mail Management to handle manual unsubscribe requests.

Reply Mail Management (RMM) processes inbound email replies against configured keyword lists to automatically detect and action unsubscribe intent, complaint language, and other reply categories; when a customer ' s specific free-text phrasing — such as ' take me off your list ' or ' opt out ' — is not already present among the recognized unsubscribe keywords, RMM will fail to classify that reply as an unsubscribe request and the subscriber remains on the active send list, exactly matching the complaint described. The correct fix is to explicitly add these specific phrases to RMM ' s filtered keyword list configuration, so future replies containing that exact language are correctly recognized and automatically actioned as unsubscribes. Option A, the ' Common Misspellings ' reply filter, addresses typo variants of already-recognized keywords, not entirely new phrases that were never configured in the first place. Option B, DNS Record Redirect configuration, governs how inbound replies are routed to Marketing Cloud ' s RMM processing infrastructure at the mail-server level — it is a plumbing/delivery concern, not a content-classification issue, and would not explain why recognized-but-unlisted phrases go unactioned. Option C references a ' Filtered Keywords data extension, ' which is not the correct configuration surface; RMM keyword configuration is managed through its dedicated filtered keyword list interface, not a generic data extension. Reference: Reply Mail Management, Filtered Keyword Lists.