Add documentation for notification_mailer configuration

[aquibbaig]

For sending out email notifications to users in dev, a specific configuration must be set in parameters.yml file, so we need to mention the same in our documentation

[imphil]

Actually, the configuration should happen in secrets/dev-vagrant.secrets.yml. The way to modify this file is to copy it over from secrets.dist and then modify it. The file is commented, but adding a specific example for Gmail will be a good thing.

[aquibbaig]

@imphil Okay. Should the Sender's email address be defined in this file?

[aquibbaig]

Actually, the configuration should happen in secrets/dev-vagrant.secrets.yml. The way to modify this file is to copy it over from secrets.dist and then modify it. The file is commented, but adding a specific example for Gmail will be a good thing.

There can be a better solution. We will use the current swiftmailer configuration as the default case but we will use another mailer notification_mailer for email notifications. That configuration will be optimal for everything I guess

[aquibbaig]

@imphil I'm adding some changes to the email consumer. Please review when free

[imphil]

Comment by @agathver:Also add null configuration as default to test spooling of emails.