Introduce Apprise Email

Add Apprise email configuration to send emails without using mailx.

Author: auanasgheps

script-config.conf

@@ -8,6 +8,8 @@ CONFIG_VERSION="3.4" #DEV VERSION
 ### NOTIFICATION SETTINGS ###
 
 # Address where the output will be emailed to.
+# This method uses "mailx", if it's not available or doesn't work, other
+# methods are available, keep reading below.
 # If you do not want to receive emails and rely on other notification
 # methods, leave these fields empty.
 EMAIL_ADDRESS="destination-email-goes-here"
@@ -32,9 +34,9 @@ HEALTHCHECKS_URL="https://hc-ping.com/"
 
 # Apprise can send a notification to almost all of the most popular 
 # notification services available to us today such as: 
-# Telegram, Discord, Slack, Amazon SNS, Gotify, etc.
-# It can be used as an evolution of Hook Notification, which will be
-# dismissed in the future, eventually.
+# Telegram, Discord, Slack, Amazon SNS, Gotify, you name it.
+# It supersedes "Hook Notification", which will be
+# eventually dismissed in the future.
 # Set APPRISE to 1 to enable, 0 to disable.
 # Set APPRISE_URL according to the service you want to invoke.
 # Set APPRISE_ATTACH to get the report attached to the notification if a 
@@ -51,6 +53,19 @@ APPRISE_ATTACH=0
 
 APPRISE_BIN="$(command -v apprise)"
 
+# Apprise email
+# Use Apprise internal service to send emails, if mailx doesn't work. 
+# This setting does not require to enable Apprise notification feature.
+# To configure this properly, please read this documentation
+# https://github.com/caronc/apprise/wiki/Notify_email
+# This example below uses a custom SMTP. If you're using a public one
+# like Gmail, Outlook and so on, the config is much easier. 
+# Please check Apprise docs!
+# APPRISE_EMAIL_URL='mailtos://_?user=senderusername@domain.com&pass=mySuperSafePWD!&smtp=smtp.mymailserver.com&from=sender@domain.com&to=recepient@gmail.com'
+
+APPRISE_EMAIL=0
+APPRISE_EMAIL_URL=''
+
 # Use Telegram to report script execution summary (not the whole report)
 # Set 1 to enable. Create a bot using @botfather, then copy the API token.
 # To get your chat ID, use @getidsbot