diff --git a/docker-compose.yml.dist b/docker-compose.yml.dist
index 8fc776ac..b8156581 100644
--- a/docker-compose.yml.dist
+++ b/docker-compose.yml.dist
@@ -68,6 +68,12 @@ services:
     - SASLAUTHD_LDAP_SEARCH_BASE=${SASLAUTHD_LDAP_SEARCH_BASE}
     - SASLAUTHD_LDAP_FILTER=${SASLAUTHD_LDAP_FILTER}
     - SASL_PASSWD=${SASL_PASSWD}
+    - SRS_EXCLUDE_DOMAINS=${SRS_EXCLUDE_DOMAINS}
+    - SRS_SECRET=${SRS_SECRET}
+    - RELAY_HOST=${RELAY_HOST}
+    - RELAY_PORT=${RELAY_PORT}
+    - RELAY_USER=${RELAY_USER}
+    - RELAY_PASSWORD=${RELAY_PASSWORD}
     cap_add:
     - NET_ADMIN
     - SYS_PTRACE