Rails 4 multiple SMTP configurations

Question

My rails 4 application works fine when using Mailgun or Sendgrid. I want to use both ex. When sending Orders to go through Sendgrid and when create Tickets to go through Mailgun.

I have both accounts and my config/environments/development.rb looks like:

 config.action_mailer.smtp_settings = {
    address: 'smtp.mailgun.org',
    port: 587,
    user_name: 'some_username',
    password: 'some_password',
    authentication: 'plain',
    enable_starttls_auto: true   }

If I replace with Sengrid smtp_settings it starts sending from Sendgrid but as I mentioned I want both and choose which one for specific function.

Thank you

Answer 1

for different environments you can set different email configurations

in config/environments/staging.rb one mail service,

in config/environments/production.rb second,

and for config/environments/development.rb I suggest you to use letter_opener

and after that in difference environment modes you will using appropriate mail settings

EDIT

I guess it's bad decision, but if you wanna send same mail via two mail services, you can redefine ActionMailer::Base.smtp_settings.

Just create two mailers and redefine settings inside mailer :

first

class MailgunUserMailer < ApplicationMailer
  ActionMailer::Base.smtp_settings = {
      address: 'smtp.mailgun.org',
      port: 587,
      user_name: 'some_username',
      password: 'some_password',
      authentication: 'plain',
      enable_starttls_auto: true   }

  def created(@user)
    .....

and second

class MandrillUserMailer < ApplicationMailer
  ActionMailer::Base.smtp_settings = {
      address: 'smtp.mandrill.com',
      port: 587,
      user_name: 'some_username',
      password: 'some_password',
      authentication: 'plain',
      enable_starttls_auto: true   }

  def created(@user)
    .....

and than you can send same email via 2 providers:

MailgunUserMailer.created.deliver MandrillUserMailer.created.deliver