diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000000000000000000000000000000000..cb41fa4712f4787e6414a1863da5178220634fe6
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+# -*- mode: conf -*-
+
+# Use DOS line endings for email message body templates.
+rattail/templates/mail/*.mako  eol=crlf