If you have access to the message, you can do whatever you want with it. There is no way around that. End-to-end encryption is like a mathematically sealed enve

If you have access to the message, you can do whatever you want with it. There is no way around that. End-to-end encryption is like a mathematically sealed envelop and only prevents seeing the message in transit. What sender or receiver choose to do is always up to them.