Actionmailer mail

Action Mailer!

Action Mailer is a part of the Ruby on Rails framework that allows you to send emails from your application. It's a way to send emails programmatically, without having to manually write the email content and send it using a mail client.

Here's a basic overview of how Action Mailer works:

  1. Mailers: In your Rails application, you create a mailer class that inherits from ActionMailer::Base. This class defines the email templates and the logic for sending emails.
  2. Email Templates: You create email templates in your mailer class, which define the content of the email. These templates are written in ERb (Embedded Ruby) and can include dynamic data from your application.
  3. Delivery Methods: Action Mailer provides several delivery methods for sending emails, such as SMTP, Sendmail, and Mailgun. You can configure the delivery method in your config/environments/*.rb files.
  4. Sending Emails: To send an email, you create an instance of your mailer class and call the deliver method. This method sends the email using the configured delivery method.

Here's an example of a simple mailer class:

# app/mailers/user_mailer.rb
class UserMailer < ActionMailer::Base
  default from: '[email protected]'

  def welcome_email(user)
    @user = user
    mail to: user.email, subject: 'Welcome to our application!'
  end
end

In this example, the UserMailer class has a welcome_email method that sends an email to the user with a welcome message. The @user instance variable is set to the user object, and the email is sent using the mail method.

To send an email using this mailer class, you would do something like this:

# app/controllers/users_controller.rb
class UsersController < ApplicationController
  def create
    user = User.new(params[:user])
    UserMailer.welcome_email(user).deliver
    redirect_to root_url, notice: 'Email sent successfully!'
  end
end

In this example, the create action of the UsersController creates a new user and sends a welcome email using the UserMailer class.

Action Mailer provides many features and options for customizing your email sending, such as:

Overall, Action Mailer is a powerful tool for sending emails in your Rails application, and it provides a lot of flexibility and customization options.