diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 00000000..0a30cc8d
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,27 @@
+name: Test action
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        branch: [test]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Send mail
+        uses: ./
+        with:
+          server_address: ${{secrets.ADDRESS}}
+          server_port: 465
+          username: ${{secrets.USERNAME}}
+          password: ${{secrets.PASSWORD}}
+          subject: ${{github.repository}}
+          body: Test of action completed successfully!
+          to: ${{secrets.USERNAME}}
+          from: github-actions
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index af667303..aa167135 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,5 @@
-FROM alpine:3.10
+FROM ruby:2.6-alpine
 
-COPY LICENSE README.md /
+COPY entrypoint.rb /
 
-COPY entrypoint.sh /entrypoint.sh
-
-ENTRYPOINT ["/entrypoint.sh"]
+ENTRYPOINT ["/entrypoint.rb"]
diff --git a/README.md b/README.md
index 25842b56..6cb1d61e 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,19 @@
-# Container Action Template
+# Send mail Github Action
 
-To get started, click the `Use this template` button on this repository [which will create a new repository based on this template](https://github.blog/2019-06-06-generate-new-repositories-with-repository-templates/).
+An action that simply sends a mail to multiple recipients.
 
-For info on how to build your first Container action, see the [toolkit docs folder](https://github.com/actions/toolkit/blob/master/docs/container-action.md).
+## Usage
+
+```yaml
+- name: Send mail
+  uses: dawidd6/action-send-mail@master
+  with:
+    server_address: smtp.gmail.com
+    server_port: 465
+    username: ${{secrets.MAIL_USERNAME}}
+    password: ${{secrets.MAIL_PASSWORD}}
+    subject: Github Actions job result
+    body: Build job of ${{github.repository}} completed successfully!
+    to: obiwan@tatooine.com,yoda@dagobah.com
+    from: Luke Skywalker
+```
diff --git a/action.yml b/action.yml
index 4353abb9..8172b86a 100644
--- a/action.yml
+++ b/action.yml
@@ -1,12 +1,34 @@
-name: 'Container Action Template'
-description: 'Get started with Container actions'
-author: 'GitHub'
-inputs: 
-  myInput:
-    description: 'Input to use'
-    default: 'world'
+name: Send mail
+description: Send mail to multiple recipients
+author: dawidd6
+branding:
+  icon: mail
+  color: blue
+inputs:
+  server_address:
+    description: SMTP server address
+    required: true
+  server_port:
+    description: SMTP server port
+    required: true
+  username:
+    description: Authenticate as this user to SMTP server
+    required: true
+  password:
+    description: Authenticate with this password to SMTP server
+    required: true
+  subject:
+    description: Subject of mail message
+    required: true
+  body:
+    description: Body of mail message
+    required: true
+  to:
+    description: Recipients mail addresses (separated with comma)
+    required: true
+  from:
+    description: Full name of mail sender
+    required: true
 runs:
-  using: 'docker'
-  image: 'Dockerfile'
-  args:
-    - ${{ inputs.myInput }}
+  using: docker
+  image: Dockerfile
\ No newline at end of file
diff --git a/entrypoint.rb b/entrypoint.rb
new file mode 100755
index 00000000..707a0635
--- /dev/null
+++ b/entrypoint.rb
@@ -0,0 +1,33 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'net/smtp'
+
+# Inputs
+address = ENV["INPUT_SERVER_ADDRESS"]
+port = ENV["INPUT_SERVER_PORT"]
+username = ENV["INPUT_USERNAME"]
+password = ENV["INPUT_PASSWORD"]
+subject = ENV["INPUT_SUBJECT"]
+body = ENV["INPUT_BODY"]
+to = ENV["INPUT_TO"]
+from = ENV["INPUT_FROM"]
+
+# Message
+message = <<EOM
+Subject: #{subject}
+From: #{from} <#{username}>
+
+#{body}
+EOM
+
+# Send
+begin
+  smtp = Net::SMTP.new(address, port.to_i)
+  smtp.enable_tls
+  smtp.start(address, username, password, :login)
+  smtp.send_message(message, username, to.split(","))
+rescue StandardError => e
+  puts "Error: #{e.message}"
+  exit 1
+end
diff --git a/entrypoint.sh b/entrypoint.sh
deleted file mode 100755
index 3b8cd2da..00000000
--- a/entrypoint.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh -l
-
-echo "hello $1"