POST /send HTTP/1.1
Host: localhost:18045
User-Agent: curl/7.76.1
Accept: */*
Content-Length: 193
Content-Type: multipart/form-data; boundary=------------------------3e056db8b78cdf1d

--------------------------3e056db8b78cdf1d
Content-Disposition: form-data; name="foo"; filename="-"
Content-Transfer-Encoding: 8bit

%BOLDhw

--------------------------3e056db8b78cdf1d--