Block the boom probe spammer

block-boomprobe.sql

@@ -0,0 +1,19 @@
+-----------------------------------------
+-- Block the boom protocol probe spam ---
+-----------------------------------------
+
+CREATE OR REPLACE FUNCTION block_boomprotocolprobe()
+RETURNS trigger AS
+$$
+BEGIN
+    IF NEW."registrationReason" = 'Automated protocol deliverability probe' THEN
+        RETURN NULL;
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trg_block_boomprotocolprobe
+BEFORE INSERT ON "userRegistration"
+FOR EACH ROW
+EXECUTE FUNCTION block_boomprotocolprobe();