diff --git a/static/.well-known/mta-sts.txt b/static/.well-known/mta-sts.txt
deleted file mode 100644
index a861061..0000000
--- a/static/.well-known/mta-sts.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-version: STSv1
-mode: enforce
-mx: mail.tommytran.io
-max_age: 604800
\ No newline at end of file