Capture Marketing Cloud RMM replies in a Data Extension

1) Create a data extension with fields to capture the data.

2) Create an email that contains AMPScript to insert the reply information into the Data Extension. Example script:

%%[
Set @subscriberID = _RMM_SubscriberID
Set @email = _RMM_RecipientEmailAddress
Set @reply = _replycontent
Set @jobid = _RMM_JobID
Set @batchid = _RMM_BatchID
InsertDE ('Replies', 'SubscriberID', @subscriberID, 'Email', @email, 'reply', @reply, 'JobID', @jobid, 'BatchID', @batchid)
]%%

3) Create a Triggered Send that uses the email created in Step 2.

4) Create a Sender Profile to use with the Triggered Send created in Step 3 that uses custom RMM settings and choose the newly created Triggered Send as the "Forward using triggered send" option.

Additional RMM personalization string can be found here.