POST /send HTTP/1.1
Host: localhost:18045
User-Agent: curl/7.76.1
Accept: */*
Content-Length: 207
Content-Type: multipart/form-data; boundary=------------------------5cbcc75e58188254

--------------------------5cbcc75e58188254
Content-Disposition: form-data; name="foo"; filename="-"
Content-Transfer-Encoding: quoted-printable

%BOLDhw=0A
--------------------------5cbcc75e58188254--