I can't remember the name of the story, and couldn't find anything on Google searches either.
The story is about a science fiction writer whose story gets rejected by the publisher because it's word-by-word identical to another story published years ago. The writer then writes another story only to find out that the same author also published this story around the same time as the other one.
Our writer then writes a story about a man who uses a time machine to read other people's work in the future and then publishes it in his time. Only to find out that this story was also published by the same guy years ago.
The story I'm trying to find out was in the form of letter correspondence between the writer and the publisher.
So, does anyone know its title?