mcsuth/gist:7109645

## gistfile1.rb
rails g UserMailer

class UserMailer < ActionMailer::Base
  default from: "fred@fred.com"

   def confirm_user(user)
    @user = user
    @url  = 'http://fred.com/login'
    mail(to: @user.email, subject: 'Welcome to Fred Site')
  end
end

Text version of greeting email (in views/UserMailer/welcome_email.text.erb )
Welcome to example.com, <%= @user.name %>
===============================================

You have successfully signed up to example.com,
your username is: <%= @user.login %>.

To login to the site, just follow this link: <%= @url %>.

Thanks for joining and have a great day!

HTML version (in views/UserMailer/welcome_email.html.erb)
<!DOCTYPE html>
<html>
  <head>
    <meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
  </head>
  <body>
    <h1>Welcome to example.com, <%= @user.name %></h1>
    <p>
      You have successfully signed up to example.com,
      your username is: <%= @user.login %>.<br/>
    </p>
    <p>
      To login to the site, just follow this link: <%= @url %>.
    </p>
    <p>Thanks for joining and have a great day!</p>
  </body>
</html>

Then the configuration files:
for local testing in config/environment/development.rb put something like this:
config.action_mailer.delivery_method = :sendmail
# Defaults to:
# config.action_mailer.sendmail_settings = {
#   location: '/usr/sbin/sendmail',
#   arguments: '-i -t'
# }
config.action_mailer.perform_deliveries = true
config.action_mailer.raise_delivery_errors = true
config.action_mailer.default_options = {from: 'no-replay@example.com'}

You will use the config/environment/production.rb file for deployment to Heroku, and
use the environment variables suggested by SendGrid, or whoever you choose for your
3rd party mailer service.
	rails g UserMailer

	class UserMailer < ActionMailer::Base
	default from: "fred@fred.com"

	def confirm_user(user)
	@user = user
	@url = 'http://fred.com/login'
	mail(to: @user.email, subject: 'Welcome to Fred Site')
	end
	end

	Text version of greeting email (in views/UserMailer/welcome_email.text.erb )
	Welcome to example.com, <%= @user.name %>
	===============================================

	You have successfully signed up to example.com,
	your username is: <%= @user.login %>.

	To login to the site, just follow this link: <%= @url %>.

	Thanks for joining and have a great day!

	HTML version (in views/UserMailer/welcome_email.html.erb)
	<!DOCTYPE html>
	<html>
	<head>
	<meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
	</head>
	<body>
	<h1>Welcome to example.com, <%= @user.name %></h1>
	<p>
	You have successfully signed up to example.com,
	your username is: <%= @user.login %>.<br/>
	</p>
	<p>
	To login to the site, just follow this link: <%= @url %>.
	</p>
	<p>Thanks for joining and have a great day!</p>
	</body>
	</html>

	Then the configuration files:
	for local testing in config/environment/development.rb put something like this:
	config.action_mailer.delivery_method = :sendmail
	# Defaults to:
	# config.action_mailer.sendmail_settings = {
	# location: '/usr/sbin/sendmail',
	# arguments: '-i -t'
	# }
	config.action_mailer.perform_deliveries = true
	config.action_mailer.raise_delivery_errors = true
	config.action_mailer.default_options = {from: 'no-replay@example.com'}

	You will use the config/environment/production.rb file for deployment to Heroku, and
	use the environment variables suggested by SendGrid, or whoever you choose for your
	3rd party mailer service.