Added SMTP packages

We have added the SMTP packages that are missing.

For its installation we have to add the universe repository.

docker-compose.yml

@@ -3,7 +3,7 @@ version: '2'
 
 services:
   wazuh:
-    image: wazuh/wazuh:3.7.0_6.4.3
+    build: ./wazuh
     hostname: wazuh-manager
     restart: always
     ports:

wazuh/Dockerfile

@@ -21,10 +21,13 @@ RUN useradd -u 1000 -g 1000 -d /var/ossec ossec
 RUN echo "postfix postfix/mailname string wazuh-manager" | debconf-set-selections
 RUN echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections
 
+# Add universe repository
+RUN add-apt-repository universe
+
 # Install packages
 RUN apt-get update && apt-get -y install openssl postfix bsd-mailx python-boto python-pip  \
     apt-transport-https vim expect nodejs python-cryptography wazuh-manager=${WAZUH_VERSION} \
-    wazuh-api=${WAZUH_VERSION}
+    wazuh-api=${WAZUH_VERSION} mailutils libsasl2-modules
 
 # Adding first run script.
 ADD config/data_dirs.env /data_dirs.env