You can try to solve this problem using the unsubscan utility. I will show her work on the example of Gmail, but she will work on any emails in the .EML format.
If you want to get the maximum coverage, you will have to stream on several platforms at once. And then you will need to use special applications or services.
Vexel — is an app for storing a variety of currencies (fiat and crypto). You are free to trade and convert them, as well as conduct various transactions.