Sending mail with Rails 3 in development environment

I'm sure this has been asked a million times before but I can't find anything that works for me so I'm asking again!

I just need a way of sending emails using ActionMailer in rails 3. I have followed numerous tutorials including the Railscasts tutorial on the new ActionMailer and I can see the mails being generated but I don't receive them.

I have tried a bunch of different ways but they generally amount to configuring the following settings

ActionMailer::Base.delivery_method = :smtp

ActionMailer::Base.smtp_settings = {
  :address              => "smtp.gmail.com",
  :port                 => "587",
  :domain               => "gmail.com",
  :user_name            => "xxx@gmail.com",
  :password             => "yyy",
  :authentication       => "plain",
  :enable_starttls_auto => true
}

I have tried the above code (with valid gmail details of course) in my config/environment.rb, config/environments/development.rb and currently have it in its own initialiser config/initialisers/setup_mail.rb

I have also tried with a few different smtp servers including Gmail and Sendgrid, adjusting the smtp settings accordingly but still nothing. I can see the mail in the terminal and the development log and that's it.

Does anyone know of any other gotcha's that I may have missed that need to be setup for ActionMailer to work? Failing that is there a way of getting more information about why the mails aren't being sent? I have

config.action_mailer.raise_delivery_errors = true

set in my config/development.rb but the development log still just shows the same as I see in the terminal.

For what it's worth, I am developing on a Ubuntu 10.04 laptop just in case there's any specific setup needed for that.

Many thanks

Well I have resolved the issue, but quite why this works and the other methods did not, I don't know.

The solution was to create an initialiser in config/initialisers/setup_mail.rb containing the following

if Rails.env != 'test'
  email_settings = YAML::load(File.open("#{Rails.root.to_s}/config/email.yml"))
  ActionMailer::Base.smtp_settings = email_settings[Rails.env] unless email_settings[Rails.env].nil?
end

I then added config/email.yml containing the details of the dev and production email accounts

development:
  :address: smtp.gmail.com
  :port: 587
  :authentication: plain
  :user_name: xxx
  :password: yyy
  :enable_starttls_auto: true
production:
  :address: smtp.gmail.com
  :port: 587
  :authentication: plain
  :user_name: xxx
  :password: yyy
  :enable_starttls_auto: true

Like I say, no idea why, but this seemed to do the trick. Thanks all for the pointers

I have the following in config/environments/development.rb

config.action_mailer.raise_delivery_errors = true
config.action_mailer.perform_deliveries = true

The actual mail-configuration, config.actionmailer.* i have placed in config\application.rb.

Hope this helps :)

Anubhaw

Try using 'sendmail' instead of 'smtp'.

ActionMailer::Base.delivery_method = :sendmail
ActionMailer::Base.sendmail_settings = {
  :address              => "smtp.gmail.com",
  :port                 => "587",
  :domain               => "gmail.com",
  :user_name            => "xxx@gmail.com",
  :password             => "yyy",
  :authentication       => "plain",
  :enable_starttls_auto => true
}

Three things.

First, the port is an integer and does not need quotes, as in your first example. (But I think a string should still work.)

Second, don't forget to restart your server each time you modify this (or any) initializer file. This could explain why you didn't see an error after adding:

config.action_mailer.raise_delivery_errors = true

Without having that error message, it's hard to determine why the mail wasn't going but now is. One possiblity is your use of double quotes around the password. If you were using a strong password and had a token in your password that wasn't escaped it could have been reinterpreted. (i.e. "P@ssw\0rd" would become P@ssrd). For just this reason, I always use single quotes in my code unless I specifically need the syntactic sugar.

Lastly, enable_starttls_auto: true is the default and unnecessary.

Just put all config to: config/environments/development.rb

I mean

ActionMailer::Base.delivery_method = :smtp

ActionMailer::Base.smtp_settings = {
  :address              => "smtp.gmail.com",
  :port                 => "587",
  :domain               => "gmail.com",
  :user_name            => "xxx@gmail.com",
  :password             => "yyy",
  :authentication       => "plain",
  :enable_starttls_auto => true
}

and

config.action_mailer.raise_delivery_errors = true
config.action_mailer.perform_deliveries = true

It worked for me.

ActionMailer::Base.delivery_method = :sendmail
and
config.action_mailer.perform_deliveries = true

were the two necessary steps that got me over this issue

In addition to, your gmail username does not alias.

Ref: https://support.google.com/mail/answer/12096?hl=en

My two pennies worth:

I had those exact same symptoms with Rails 5.1: Nothing happened, the settings in my development.rb file were utterly ignored...

Then I remembered to restart the machine! (which solved magically the issue)

This had been pointed out by a couple of previous comments.

The issue is tricky however because you do not expect this behavior. In my view, the default comments in development.rb are, in this respect, misleading:

# In the development environment your application's code is reloaded on
# every request. This slows down response time but is perfect for development
# since *you don't have to restart the web server when you make code changes*.

来源：https://stackoverflow.com/questions/4313177/sending-mail-with-rails-3-in-development-environment

标签

ruby-on-rails

ruby-on-rails-3

actionmailer