1 files changed, 4 insertions, 0 deletions
diff --git a/docs/spam_checker.md b/docs/spam_checker.md
index 52947f605e..c16914e61d 100644
--- a/docs/spam_checker.md
+++ b/docs/spam_checker.md
@@ -1,3 +1,7 @@
+**Note: this page of the Synapse documentation is now deprecated. For up to date
+documentation on setting up or writing a spam checker module, please see
+[this page](https://matrix-org.github.io/synapse/develop/modules.html).**
+
# Handling spam in Synapse
Synapse has support to customize spam checking behavior. It can plug into a
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