diff --git a/dockerfiles/email/postfix/Dockerfile b/dockerfiles/email/postfix/Dockerfile
index 175970944be22e7fefdb169e7eeb06fbd67b9433..a6ba749ce083ec41e36dfb49b3d2e0d23b028dd1 100644
--- a/dockerfiles/email/postfix/Dockerfile
+++ b/dockerfiles/email/postfix/Dockerfile
@@ -17,7 +17,7 @@ COPY install.sh install.sh
 
 RUN chmod 755 /install.sh
 
-VOLUME ["/var/spool/mail"]
+VOLUME ["/var/spool/postfix/"]
 
 EXPOSE 25
 
diff --git a/unit-files/postfix.service b/unit-files/postfix.service
index 45180789e338eedf43c4b666546abcb8e21066f3..f321094858d49869cf4a60855b25f277477c79aa 100644
--- a/unit-files/postfix.service
+++ b/unit-files/postfix.service
@@ -19,6 +19,7 @@ ExecStart=/usr/bin/docker run \
   --name %p \
   -v /data/runtime/dev/log:/dev/log \
   -v /data/runtime/postfix/:/data \
+  -v /data/runtime/postfix-spool/:/var/spool/postfix \
   -p 25:25 \
   pierreozoux/postfix
 ExecReload=/usr/bin/docker restart %p