diff --git a/dockers/postfix/env-config b/dockers/postfix/env-config
index 4dcee87..475ea64 100644
--- a/dockers/postfix/env-config
+++ b/dockers/postfix/env-config
@@ -193,6 +193,7 @@ POSTFIX_INET_PROTOCOLS=all
 # -----------------------------------------------------------------------------------------------------------------------------
 
 ENABLE_SPAMASSASSIN=1
+ENABLE_AMAVIS = 1
 
 # deliver spam messages in the inbox (eventually tagged using SA_SPAM_SUBJECT)
 SPAMASSASSIN_SPAM_TO_INBOX=1