diff --git a/dockerfiles/dovecot/dovecot.conf b/dockerfiles/dovecot/dovecot.conf
index e8d9ec4..a912e11 100644
--- a/dockerfiles/dovecot/dovecot.conf
+++ b/dockerfiles/dovecot/dovecot.conf
@@ -6,7 +6,7 @@ mail_location=sdbox:~/Mail
 # mail_uid=1000
 # mail_gid=10000
 
-protocols = imap submission lmtp
+protocols = imap lmtp
 
 # first_valid_uid = 1000
 # last_valid_uid = 10000
@@ -34,8 +34,11 @@ namespace {
   separator = /
 }
 
+lmtp_proxy = yes
+
 service lmtp {
   inet_listener {
+    address = 0.0.0.0
     port = 24
   }
 }
diff --git a/dockerfiles/postfix/Dockerfile b/dockerfiles/postfix/Dockerfile
index 9c28ad7..899576e 100644
--- a/dockerfiles/postfix/Dockerfile
+++ b/dockerfiles/postfix/Dockerfile
@@ -6,6 +6,7 @@ COPY startup.sh /usr/bin/startup.sh
 RUN chmod +x /usr/bin/startup.sh
 COPY main.cf /etc/postfix/main.cf
 COPY virtual /etc/postfix/virtual
+COPY vmailbox /etc/postfix/vmailbox
 
 EXPOSE 25
 EXPOSE 465
diff --git a/dockerfiles/postfix/main.cf b/dockerfiles/postfix/main.cf
index 15991c2..ceb0a5a 100644
--- a/dockerfiles/postfix/main.cf
+++ b/dockerfiles/postfix/main.cf
@@ -3,12 +3,13 @@ maillog_file = /dev/stdout
 
 # this setting has several side-effects, e.g. the domain of this mail
 # server is now example.com, http://www.postfix.org/postconf.5.html#mydomain
-myhostname = virt.local
+myhostname = smtp.virt.local
+mynetworks = 127.0.0.0/8 10.0.0.0/8 192.0.0.0/8 172.17.0.0/16
 
 # disable all compatibility levels
 compatibility_level = 9999
 
-virtual_mailbox_domains = virt.local
-virtual_mailbox_maps = lmdb:/etc/postfix/virtual
+virtual_mailbox_domains = imap.virt.local virt.local
+virtual_mailbox_maps = lmdb:/etc/postfix/vmailbox
 virtual_alias_maps = lmdb:/etc/postfix/virtual
 virtual_transport = lmtp:mail-dovecot.default.svc.cluster.local:24
\ No newline at end of file
diff --git a/dockerfiles/postfix/startup.sh b/dockerfiles/postfix/startup.sh
index d8762ce..8296c18 100644
--- a/dockerfiles/postfix/startup.sh
+++ b/dockerfiles/postfix/startup.sh
@@ -3,6 +3,7 @@
 set -ex
 
 postmap /etc/postfix/virtual
+postmap /etc/postfix/vmailbox
 newaliases
 
 exec postfix start-fg
diff --git a/dockerfiles/postfix/virtual b/dockerfiles/postfix/virtual
index fdb0d60..b3f2858 100644
--- a/dockerfiles/postfix/virtual
+++ b/dockerfiles/postfix/virtual
@@ -1 +1 @@
-@virt.local user@virt.local
\ No newline at end of file
+postmaster@virt.local postmaster
diff --git a/dockerfiles/postfix/vmailbox b/dockerfiles/postfix/vmailbox
new file mode 100644
index 0000000..cfa70cc
--- /dev/null
+++ b/dockerfiles/postfix/vmailbox
@@ -0,0 +1,2 @@
+user@virt.local     whatever
+user2@virt.local    whatever
\ No newline at end of file