diff --git a/.travis.yml b/.travis.yml
index f54fc73..887b61a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,9 +33,9 @@ env:
     - PHP_VERSION=70 BUILD_SERVICE=aerospike
     - PHP_VERSION=71 BUILD_SERVICE=aerospike
 
-    - PHP_VERSION=56 BUILD_SERVICE="memcached beanstalkd beanstalkd-console rabbitmq adminer elasticsearch certbot mailhog selenium jenkins proxy proxy2 balancer"
-    - PHP_VERSION=70 BUILD_SERVICE="memcached beanstalkd beanstalkd-console rabbitmq adminer elasticsearch certbot mailhog selenium jenkins proxy proxy2 balancer"
-    - PHP_VERSION=71 BUILD_SERVICE="memcached beanstalkd beanstalkd-console rabbitmq adminer elasticsearch certbot mailhog selenium jenkins proxy proxy2 balancer"
+    - PHP_VERSION=56 BUILD_SERVICE="memcached beanstalkd beanstalkd-console rabbitmq adminer elasticsearch certbot mailhog maildev selenium jenkins proxy proxy2 balancer"
+    - PHP_VERSION=70 BUILD_SERVICE="memcached beanstalkd beanstalkd-console rabbitmq adminer elasticsearch certbot mailhog maildev selenium jenkins proxy proxy2 balancer"
+    - PHP_VERSION=71 BUILD_SERVICE="memcached beanstalkd beanstalkd-console rabbitmq adminer elasticsearch certbot mailhog maildev selenium jenkins proxy proxy2 balancer"
 
     - HUGO_VERSION=0.20.2
 
diff --git a/DOCUMENTATION/content/introduction/index.md b/DOCUMENTATION/content/introduction/index.md
index 115a79c..58e3568 100644
--- a/DOCUMENTATION/content/introduction/index.md
+++ b/DOCUMENTATION/content/introduction/index.md
@@ -97,7 +97,7 @@ Beanstalkd - RabbitMQ - PHP Worker
 - **Queueing Management:**
 Beanstalkd Console - RabbitMQ Console
 - **Random Tools:**
-HAProxy - Certbot - Blackfire - Selenium - Jenkins - ElasticSearch - Kibana - Mailhog - Minio - Varnish - Swoole - Laravel Echo...
+HAProxy - Certbot - Blackfire - Selenium - Jenkins - ElasticSearch - Kibana - Mailhog - MailDev - Minio - Varnish - Swoole - Laravel Echo...
 
 Laradock introduces the **Workspace** Image, as a development environment.
 It contains a rich set of helpful tools, all pre-configured to work and integrate with almost any combination of Containers and tools you may choose.
diff --git a/caddy/Dockerfile b/caddy/Dockerfile
index d88fe39..aca00cd 100644
--- a/caddy/Dockerfile
+++ b/caddy/Dockerfile
@@ -1,22 +1,17 @@
-FROM alpine:3.5
+FROM golang
 
-MAINTAINER Eric Pfeiffer <computerfr33k@users.noreply.github.com>
+MAINTAINER Huadong Zuo <admin@zuohuadong.cn>
 
-ENV caddy_version=0.10.5
-ARG plugins=http.git
+ARG plugins="git"
 
-LABEL caddy_version="$caddy_version" architecture="amd64"
+## If you come frome china, please ues it.
 
-RUN apk update \
-    && apk upgrade \
-    && apk add --no-cache openssh-client git tar curl
+# RUN echo "172.217.6.127 golang.org" >> /etc/hosts
 
-RUN curl --silent --show-error --fail --location \
-        --header "Accept: application/tar+gzip, application/x-gzip, application/octet-stream" -o - \
-        "https://caddyserver.com/download/linux/amd64?plugins=${plugins}" \
-        | tar --no-same-owner -C /usr/bin/ -xz caddy \
-    && mv /usr/bin/caddy /usr/bin/caddy \
-    && chmod 0755 /usr/bin/caddy
+RUN go get github.com/abiosoft/caddyplug/caddyplug \
+    && caddyplug install-caddy \
+    && caddyplug install git
+RUN caddy --version
 
 EXPOSE 80 443 2015
 
diff --git a/docker-compose.yml b/docker-compose.yml
index e0fee7d..ae47a28 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -550,6 +550,17 @@ services:
         - frontend
         - backend
 
+### MailDev Container #######################################
+
+    maildev:
+      build: ./maildev
+      ports:
+        - "${MAILDEV_HTTP_PORT}:80"
+        - "${MAILDEV_SMTP_PORT}:25"
+      networks:
+        - frontend
+        - backend
+
 ### Selenium Container ########################################
 
     selenium:
diff --git a/env-example b/env-example
index 0fe6ddb..5d0360c 100644
--- a/env-example
+++ b/env-example
@@ -76,6 +76,7 @@ PHP_FPM_INSTALL_OPCACHE=false
 PHP_FPM_INSTALL_EXIF=false
 PHP_FPM_INSTALL_AEROSPIKE=false
 PHP_FPM_INSTALL_MYSQLI=false
+PHP_FPM_INSTALL_POSTGRES=false
 PHP_FPM_INSTALL_TOKENIZER=false
 PHP_FPM_INSTALL_INTL=false
 PHP_FPM_INSTALL_GHOSTSCRIPT=false
@@ -205,6 +206,11 @@ PMA_PASSWORD=secret
 PMA_ROOT_PASSWORD=secret
 PMA_PORT=8080
 
+### MAILDEV ############################################################################################################
+
+MAILDEV_HTTP_PORT=1080
+MAILDEV_SMTP_PORT=25
+
 ### VARNISH ############################################################################################################
 
 VARNISH_CONFIG=/etc/varnish/default.vcl
diff --git a/jenkins/Dockerfile b/jenkins/Dockerfile
index 63480c7..cfcba23 100644
--- a/jenkins/Dockerfile
+++ b/jenkins/Dockerfile
@@ -25,8 +25,8 @@ VOLUME /var/jenkins_home
 # or config file with your custom jenkins Docker image.
 RUN mkdir -p /usr/share/jenkins/ref/init.groovy.d
 
-ENV TINI_VERSION 0.13.2
-ENV TINI_SHA afbf8de8a63ce8e4f18cb3f34dfdbbd354af68a1
+ENV TINI_VERSION 0.16.1
+ENV TINI_SHA d1cb5d71adc01d47e302ea439d70c79bd0864288
 
 # Use tini as subreaper in Docker container to adopt zombie processes 
 RUN curl -fsSL https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-static-amd64 -o /bin/tini && chmod +x /bin/tini \
@@ -36,10 +36,10 @@ COPY init.groovy /usr/share/jenkins/ref/init.groovy.d/tcp-slave-agent-port.groov
 
 # jenkins version being bundled in this docker image
 ARG JENKINS_VERSION
-ENV JENKINS_VERSION ${JENKINS_VERSION:-2.32.3}
+ENV JENKINS_VERSION ${JENKINS_VERSION:-2.73.2}
 
 # jenkins.war checksum, download will be validated using it
-ARG JENKINS_SHA=a25b9a314ca9e76f9673da7309e1882e32674223
+ARG JENKINS_SHA=f6d1351beef34d980b32f8c463be505445f637e2fc62156fecd42891c53c97d3
 
 # Can be used to customize where jenkins.war get downloaded from
 ARG JENKINS_URL=https://repo.jenkins-ci.org/public/org/jenkins-ci/main/jenkins-war/${JENKINS_VERSION}/jenkins-war-${JENKINS_VERSION}.war
@@ -47,7 +47,7 @@ ARG JENKINS_URL=https://repo.jenkins-ci.org/public/org/jenkins-ci/main/jenkins-w
 # could use ADD but this one does not check Last-Modified header neither does it allow to control checksum 
 # see https://github.com/docker/docker/issues/8331
 RUN curl -fsSL ${JENKINS_URL} -o /usr/share/jenkins/jenkins.war \
-  && echo "${JENKINS_SHA}  /usr/share/jenkins/jenkins.war" | sha1sum -c -
+  && echo "${JENKINS_SHA}  /usr/share/jenkins/jenkins.war" | sha256sum -c -
 
 ENV JENKINS_UC https://updates.jenkins.io
 RUN chown -R ${user} "$JENKINS_HOME" /usr/share/jenkins/ref
@@ -71,7 +71,7 @@ RUN apt-get install -y curl && curl -sSL https://get.docker.com/ | sh
 RUN usermod -aG docker jenkins
 
 # Install Docker-Compose
-RUN curl -L "https://github.com/docker/compose/releases/download/1.10.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+RUN curl -L "https://github.com/docker/compose/releases/download/1.16.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
 RUN chmod +x /usr/local/bin/docker-compose
 
 
diff --git a/maildev/Dockerfile b/maildev/Dockerfile
new file mode 100644
index 0000000..4484c83
--- /dev/null
+++ b/maildev/Dockerfile
@@ -0,0 +1,5 @@
+FROM djfarrelly/maildev
+
+MAINTAINER Maxime Hélias <maximehelias16@gmail.com>
+
+EXPOSE 80 25
diff --git a/php-fpm/Dockerfile-70 b/php-fpm/Dockerfile-70
index 07b984c..6e6ebec 100644
--- a/php-fpm/Dockerfile-70
+++ b/php-fpm/Dockerfile-70
@@ -207,6 +207,15 @@ RUN if [ ${INSTALL_MYSQLI} = true ]; then \
     docker-php-ext-install mysqli \
 ;fi
 
+#####################################
+# postgres Modifications:
+#####################################
+
+ARG INSTALL_POSTGRES=false
+RUN if [ ${INSTALL_POSTGRES} = true ]; then \
+    docker-php-ext-install pgsql \
+;fi
+
 #####################################
 # Tokenizer Modifications:
 #####################################
diff --git a/php-fpm/Dockerfile-71 b/php-fpm/Dockerfile-71
index 9d9756a..4d92994 100644
--- a/php-fpm/Dockerfile-71
+++ b/php-fpm/Dockerfile-71
@@ -216,6 +216,15 @@ RUN if [ ${INSTALL_MYSQLI} = true ]; then \
     docker-php-ext-install mysqli \
 ;fi
 
+#####################################
+# postgres Modifications:
+#####################################
+
+ARG INSTALL_POSTGRES=false
+RUN if [ ${INSTALL_POSTGRES} = true ]; then \
+    docker-php-ext-install pgsql \
+;fi
+
 #####################################
 # Tokenizer Modifications:
 #####################################
diff --git a/postgres/Dockerfile b/postgres/Dockerfile
index 56a4ddb..423c5d6 100644
--- a/postgres/Dockerfile
+++ b/postgres/Dockerfile
@@ -1,7 +1,7 @@
-FROM postgres:latest
+FROM postgres:alpine
 
 MAINTAINER Ben M <git@bmagg.com>
 
 CMD ["postgres"]
 
-EXPOSE 5432
\ No newline at end of file
+EXPOSE 5432