diff --git a/sys/lib/tls/mail b/sys/lib/tls/mail
index b0ac52605..bf646337e 100644
--- a/sys/lib/tls/mail
+++ b/sys/lib/tls/mail
@@ -1 +1 @@
-x509 sha1=C969B712918818ED839D98B781411F9BE51C0571
+x509 sha1=1d6e1cf70ec6f9ab28d3ea4b27a49a77654d370e (replace with your mail server fingerprint)