diff --git a/published/2013.09.27-linky.md b/published/2013.09.27-linky.md
index 1be4353..0a9f8a1 100644
--- a/published/2013.09.27-linky.md
+++ b/published/2013.09.27-linky.md
@@ -37,6 +37,17 @@ For example, the following lines would be created in a file at `~/Dropbox/Linky/
     Callbacks as our Generations' Go To Statement
     http://tirania.org/blog/archive/2013/Aug-15.html
 
+The filename field is defined as:
+
+    {FromAddress}-{ReceivedAt}
+
+And the content is:
+
+    {Subject}<br>
+    {BodyPlain}<br>
+
+That means that when you email links, the subject should contain the title and the body should contain the link on the first line. It's ok if there's stuff after the body (like your signature), they will be ignored later.
+
 I create one recipe in IFTTT for each machine that I want links to appear on. You could get fancy and have different Gmail labels for individual machines, or aliases, groups, etc. I've kept it simple and just have every link I send go to both my home & work computers.