diff --git a/core/dovecot/Dockerfile b/core/dovecot/Dockerfile
index 80e3539a..363a7244 100644
--- a/core/dovecot/Dockerfile
+++ b/core/dovecot/Dockerfile
@@ -10,5 +10,6 @@ COPY sieve /var/lib/dovecot
 COPY start.py /start.py
 
 EXPOSE 110/tcp 143/tcp 993/tcp 4190/tcp 2525/tcp
+VOLUME ["/data", "/mail"]
 
 CMD /start.py
diff --git a/core/nginx/Dockerfile b/core/nginx/Dockerfile
index 8a6536eb..adb785d8 100644
--- a/core/nginx/Dockerfile
+++ b/core/nginx/Dockerfile
@@ -6,5 +6,6 @@ COPY conf /conf
 COPY *.py /
 
 EXPOSE 80/tcp 443/tcp 110/tcp 143/tcp 465/tcp 587/tcp 993/tcp 995/tcp 25/tcp 10025/tcp 10143/tcp
+VOLUME ["/certs"]
 
 CMD /start.py
diff --git a/core/postfix/Dockerfile b/core/postfix/Dockerfile
index 168f3c60..d853c9f9 100644
--- a/core/postfix/Dockerfile
+++ b/core/postfix/Dockerfile
@@ -6,5 +6,6 @@ COPY conf /conf
 COPY start.py /start.py
 
 EXPOSE 25/tcp 10025/tcp
+VOLUME ["/data"]
 
 CMD /start.py
diff --git a/optional/clamav/Dockerfile b/optional/clamav/Dockerfile
index 92309c45..1c83d9c7 100644
--- a/optional/clamav/Dockerfile
+++ b/optional/clamav/Dockerfile
@@ -6,5 +6,6 @@ COPY conf /etc/clamav
 COPY start.sh /start.sh
 
 EXPOSE 3310/tcp
+VOLUME ["/data"]
 
 CMD ["/start.sh"]
diff --git a/optional/radicale/Dockerfile b/optional/radicale/Dockerfile
index b1e63d7b..b82a0804 100644
--- a/optional/radicale/Dockerfile
+++ b/optional/radicale/Dockerfile
@@ -6,5 +6,6 @@ RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/re
 COPY radicale.conf /radicale.conf
 
 EXPOSE 5232/tcp
+VOLUME ["/data"]
 
 CMD radicale -f -S -C /radicale.conf
diff --git a/services/rspamd/Dockerfile b/services/rspamd/Dockerfile
index c6c2afdd..d5e93db7 100644
--- a/services/rspamd/Dockerfile
+++ b/services/rspamd/Dockerfile
@@ -12,4 +12,6 @@ RUN sed -i '/fuzzy/,$d' /etc/rspamd/rspamd.conf
 
 EXPOSE 11332/tcp 11334/tcp
 
+VOLUME ["/var/lib/rspamd"]
+
 CMD /start.py
diff --git a/webmails/rainloop/Dockerfile b/webmails/rainloop/Dockerfile
index dfc6c83e..f4571944 100644
--- a/webmails/rainloop/Dockerfile
+++ b/webmails/rainloop/Dockerfile
@@ -24,4 +24,7 @@ COPY default.ini /default.ini
 
 COPY start.py /start.py
 
+EXPOSE 80/tcp
+VOLUME ["/data"]
+
 CMD /start.py
diff --git a/webmails/roundcube/Dockerfile b/webmails/roundcube/Dockerfile
index 99567502..ad198236 100644
--- a/webmails/roundcube/Dockerfile
+++ b/webmails/roundcube/Dockerfile
@@ -25,4 +25,7 @@ COPY config.inc.php /var/www/html/config/
 
 COPY start.sh /start.sh
 
+EXPOSE 80/tcp
+VOLUME ["/data"]
+
 CMD ["/start.sh"]