diff --git a/Dockerfile b/Dockerfile
index 6df4fbb..509bf26 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,7 +25,7 @@ RUN postconf -e alias_maps='hash:/etc/postfix/aliases' \
   && postconf -e readme_directory='/usr/share/doc/postfix' \
   && postconf -e html_directory='no' \
   && postconf -e soft_bounce='no' \
-  && postconf -e mydestination='$mydomain' \
+  && postconf -e mydestination='/etc/postfix/maps/domains.cf' \
   && postconf -e inet_interfaces='all' \
   && postconf -e local_recipient_maps='unix:passwd.byname $alias_maps' \
   && postconf -e mynetworks_style='host' \
@@ -67,7 +67,8 @@ RUN postconf -e alias_maps='hash:/etc/postfix/aliases' \
   && postconf -e append_dot_mydomain=yes \
   && postconf -e masquerade_domains='$mydomain' \
   && postconf -e non_smtpd_milters=inet:opendkim:8891 \
-  && postconf -e smtpd_milters=inet:opendkim:8891
+  && postconf -e smtpd_milters=inet:opendkim:8891 \
+  && postconf -e virtual_alias_maps=hash:/etc/postfix/maps/virtual
 
 RUN newaliases
 RUN postmap /etc/postfix/transport
@@ -82,6 +83,7 @@ RUN monit -t
 
 # Save email for later!
 VOLUME "/var/spool/postfix"
+VOLUME "/etc/postfix/maps"
 VOLUME "/home"
 
 # Port