Rails 4: Net::ReadTimeout when calling ActionMailer - ruby-on-rails

Question

When I run my mailer in development mode, I get the following error:
Net::ReadTimeout in SchoolApplicationsController#create
Here is the controller method that is getting the timeout
def create
#school_application = SchoolApplication.new(school_application_params)
#school_application.program_cost = #school_application.calculate_cost_to_charge(params[:school_application][:program], params[:school_application][:duration])
if #school_application.save
NotificationsMailer.send_application(#school_application).deliver
redirect_to application_path(#school_application.id)
else
Rails.logger.debug(#school_application.errors.full_messages)
#school_application.errors.full_messages.each do |msg|
flash.now[:error] = msg
end
render action: "new"
end
end
I am positive the error is being caused by the NotificationsMailer call because when
I comment it out, I no longer get the error.
Here is my mailer, and the settings:
class NotificationsMailer < ActionMailer::Base
default :from => "from#slf.net"
default :to => "nayr#slf.net"
def send_application(application)
#application = application
mail(:subject => "New Application")
end
end
Here is my environments/development.rb smtp settings:
Fls::Application.configure do
# Settings specified here will take precedence over those in config/application.rb.
# 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.
config.cache_classes = false
# Do not eager load code on boot.
config.eager_load = false
# Show full error reports and disable caching.
config.consider_all_requests_local = true
config.action_controller.perform_caching = false
# Don't care if the mailer can't send.
# Print deprecation notices to the Rails logger.
config.active_support.deprecation = :log
# Raise an error on page load if there are pending migrations
config.active_record.migration_error = :page_load
# Debug mode disables concatenation and preprocessing of assets.
# This option may cause significant delays in view rendering with a large
# number of complex assets.
config.assets.debug = true
config.action_mailer.perform_deliveries = true
config.action_mailer.raise_delivery_errors = true
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
address: 'secure3309.hostgator.com',
port: 465,
domain: 'slf.net',
ssl: true,
user_name: ENV['slf_username'],
password: ENV['slf_password'],
authentication: 'plain',
enable_starttls_auto: true }
end
When I write ENV['slf_username'] in the Rails console I get the right value. Same with the password. The username is in the format user#slf.net. Is that correct or is the right format just "user" and the domain is implied from domain parameter?

Answer 1

After reading this post I took another look at my smtp settings and added
tls: true
changed
port: 465 to port: '465' as I noticed that most people write it as a string. Also Similarly changed the string "plain" to the symbol :plain

Answer 2

I faced the similar issue when i connect the smtp mail to qq mail(business mail).
I updated my settings by following the post as like below:
config.action_mailer.smtp_settings = {
address: 'smtp.exmail.qq.com',
port: '465',
domain: 'groobusiness.com',
user_name: ENV['GMAIL_USER_NAME'],
password: ENV['GMAIL_PASSWORD'],
authentication: :plain,
enable_starttls_auto: true,
openssl_verify_mode: 'none',
ssl: true,
tls: true
}
And the issue got solved.
Hope it might be helpful for someone who is facing this issue.

Answer 3

add following code in intitialize
require 'net/smtp'
module Net
class SMTP
def tls?
true
end
end
end