Is there a way to avoid auto-accepting recall requests on messages you have received?
According to this article describing how message recall works, you can do this with two steps:
First, in Tracking Options, disable "Process requests and responses on arrival". This prevents the recall from taking place until you actually open the recall request. Moreover, if you have already read the original message before you read the recall message, the recall will fail.
Then, via a rule, move recall requests to a new folder upon arrival. Recall requests will fail if the recall message is not in the same folder as the original message, so this prevents it from happening automatically.
Preferences -> Email Options
Uncheck "Process requests and responses on arrival
Uncheck "Process receipts on arrival"