diff --git a/README b/README
new file mode 100644
index 0000000..791bdbf
--- /dev/null
+++ b/README
@@ -0,0 +1,27 @@
+mail2redmine
+============
+
+mail2redmine converts incoming email from Exim to Redmine tracker tickets by
+using mail subject and body as ticket title and description respectively.
+
+Ticket owner is detected from sender's address if a corresponding account
+exists on Redmine. The email is sent to a fallback address if account doesn't
+exist.
+
+Email attachment are joined to the ticket.
+
+Installation and configuration
+==============================
+
+Copy both scripts ``mail2redmine.py`` and ``eo-redmine-mailfilter.sh`` under
+`/usr/local/bin`.
+
+Configure your exim server to redirect emails to ``eo-redmine-mailfilter.sh``
+script:
+
+`
+^support-[a-z-]*: "|/usr/local/bin/eo-redmine-mailfilter.sh"
+`
+
+Put an admin's account API key in ``/etc/redmine-key`` file.
+