How do I configure the hostname for Rails ActionMailer?

Question

I\'m working on a fairly traditional forgot password email - I want to email the user a password change token embedded in a link that they can click on in order to change th

Answer 1

Can you just do

<%="click here", :controller => foo, :action => 'bar', :token => token, :host=>request.host -%>

Answer 2

You probably want to set :protocol => 'https' as well, btw.

config.action_mailer.default_url_options = { 
    :host => "portal.example.com", 
    :protocol => 'https' 
}

Answer 3

There is another alternative, as described in http://pivotallabs.com/how-i-leaned-to-stop-hating-and-love-action-mailer/

This solution has the advantage that it doesn't require any configuration (so less of a hassle), and works fine as long as you send emails from within controllers.

But if you plan on sending email without going through a controller (e.g. from command line or in response to another email), you need the static configuration.

Answer 4

Interestingly, I had the same issue as you did, but in unit tests (while following Michael Hartl's railstutorial). I had this line in my test.rb file, but that didn't help:

config.action_mailer.default_url_options = { host: 'example.com', protocol: 'http' }

I've also added another line like this to test.rb, and surprisingly this solved the issue

default_url_options = { host: 'example.com', protocol: 'http' }

Answer 5

Setting default_url_options directly is deprecated in Rails 3.1

Use the url_for helper to create it:

<%= link_to "click here", url_for(:controller => foo, :action => 'bar', :token => token, :host => 'www.yourdomain.com') %>

Answer 6

Setting default_url_options directly is deprecated in Rails 3.1. Use url_for instead.

Add parameter :protocol to override default value (http), :protocol => 'https://'. This will create url starting with "https://..." instead of default "http://"