Disable Rails XSS protection in ActionMailer views

When building an application that sends e-mails to users, you want to avoid those e-mails from being classified as spam. Most obvious scoring issues will not be relevant to you because you are not a spammer.

However, your application must do one ...

popthis is awesome when used with inaction_mailer.

Setup inaction_mailer

Install the gem:
sudo...

The ActionMailer in Rails 2 depends on a buggy version of TMail, which sometimes inserts a blank line into the mail header when sending a mail to multiple recipients. This makes the header end prematurely.

The re...

How to remove/disable the automatic XSS protection helper html escaping for Rails 3.

This is probably a horrible idea.

In Rails, we usually have a mailer setup like this:

class MyMailer < ActionMailer::Base

  def newsletter
    mail to: 'receiver@host.tld',
      from: 'sender@host.tld',
      subject: 'My mail'
  end

end

If you want to preview you...

You can use mail-tester.com to check your application's e-mails for issues that might cause e-mails to be classified as spam.

They provide a one-time e-mail addresses that you can use to sign up etc. You can then c...

The french Tilt Studio built a caniuse clone for email clients.

Note that while checking styling support helps using (or not using) certain features, it cannot substitute for [checking the actual rendering in real clients](...

This card describes different flavors for concatting HTML safe strings in a helper method in Rails. You might want to use the tag helper instead of the [con...

MailStyle allows you to write the css for your html emails as you normally would, then writes the styles inline when you send your emails. It also makes sure that your image paths are absolute rather than relative.

Nowadays it is fairly easy to intercept and modify mails globally before they are sent. All you have to do is register an interceptor class which responds to `.deliver...