A Recreational Post System/Simple TCP

A default port of 5467.

The receiver of a connection must not do anything without being asked.

To greet, write HELLOIM name, with name being your canonical WAY element.
You will be welcomed with HELLOIM name, likewise.

To send post, write FORYOU message-count.
Then for each piece, UNE line-count, and then it.

To receive post, write ANYFORME?.
You will get a reply of FORYOU message-count.
Then for each piece, UNE line-count, and then it.

To close cleanly, write BYEFORNOW.
You will get a reply the same.