Some spammer start sending me emails while I am away from my phone(or I am distracted), do DC download all messages??? (downloading messages have a cost to me)
If the answer is “yes”, I think that messages from unapproved contacts should not be downloaded by DC(only download the headers), and an option(button?) to see the full message, should be provided.
Delta Chat version
Unwanted messages are not fully downloaded, just the headers are downloaded.
Messages from unaccepted chats are fully downloaded, I guess.