diff --git a/service/dovecot/run b/service/dovecot/run
index f56bf7a..8cbb83d 100755
--- a/service/dovecot/run
+++ b/service/dovecot/run
@@ -5,4 +5,14 @@ echo "${PWD##*/}: started."
 
 set -x
 chown -Rh dovecot:dovecot -- /etc/dovecot
+
+# For lmtp user 'vmail' so the dovecot has an access to drop the emails on FS.
+VMAIL_USER=${VMAIL_USER:-vmail}
+VMAIL_ID=${VMAIL_ID:-2700}
+VMAIL_HOME=${VMAIL_HOME:-/vmail}
+adduser -u ${VMAIL_ID} -D -s /bin/false -h ${VMAIL_HOME} ${VMAIL_USER}
+# groupadd -g ${VMAIL_ID} ${VMAIL_USER}
+# useradd -u ${VMAIL_ID} -g ${VMAIL_USER} -r -m -d ${VMAIL_HOME} -s /bin/false ${VMAIL_USER}
+chown -Rh vmail:vmail -- ${VMAIL_HOME}
+
 exec /usr/sbin/dovecot -F