Add note about spf record issue

diff --git a/blueprint/setup.md b/blueprint/setup.md
index 13309d047cbb11462fdd73ada89e9a39abdc464d..d2b0ac2d04d49b2c49793b58c90a09d75e88c662 100644 (file)
--- a/blueprint/setup.md
+++ b/blueprint/setup.md
@@ -60,6 +60,7 @@ This seems to be possible on the old Contabo control panel.
 
 * The default Contabo Debian unattended-upgrades configuration does not update everything, because YunoHost adds more apt sources.
   Check if the unattended-upgrades *YunoHost* application updates everything OOB.
+* [Issues with spf records and IPv6](https://github.com/YunoHost/issues/issues/2517)
 
 ## Notes