emails: server sends but a user doesn't receive - ruby-on-rails

Question

I'm facing a weird bug.
Trying to set up welcome email after a user's registration.
According to server logs, my code sends an email but a user doesn't receive it.
Here is my code:
models/user.rb
after_create :welcome_message
private
def welcome_message
UserMailer.welcome_email(self).deliver
end
and mailers/user_mailer.rb
def welcome_email(user)
#user = user
mail to: #user.email, subject: t("mailer.welcome_email.welcome")
end
here are environments. The error occurs in both of them
config/environments/development.rb
config.action_mailer.default_url_options = { :host => 'localhost:3000' }
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
address: 'smtp.mandrillapp.com',
port: '587',
domain: 'localhost:3000',
user_name: 'welcome#mysite.com',
password: 'blahblahblah',
authentication: 'plain',
enable_starttls_auto: true
}
and config/environments/production.rb
config.action_mailer.default_url_options = { :host => 'mysite.com' }
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
address: 'smtp.mandrillapp.com',
port: '587',
domain: 'mysite.com',
user_name: 'welcome#mysite.com',
password: 'blahblahblah',
authentication: 'plain',
enable_starttls_auto: true
}
I'm using Devise to register users. So, also tried to do that via :confirmable. Outcome is the same – test user doesn't get a welcome email.
Gemfile
gem 'rails', '3.2.12'
gem 'devise', '3.0.3'
gem "mail"
and here are server logs
Sent mail to user#hismail.com (1920ms)
Date: Sat, 10 May 2014
From: welcome#mysite.com
Reply-To: welcome#mysite.com
To: user#hismail.com
Message-ID: <aaa#aaa.mail>
Subject: Confirmation instructions
Mime-Version: 1.0
Content-Type: text/html;
charset=UTF-8
Content-Transfer-Encoding: 7bit
<p>Welcome user#hismail.com!</p>
Yet eventually there is no welcome email at user#hismail.com
Any ideas?
UPD:
on the internet I see that nobody else faces the same problem
So, I guess I'm just missing something. But cannot figure out what and where. Please help me.

Answer 1

Try this:-
Create a file named as setup_mail.rb in config/initializers/ folder so that it looks like
config/initializers/setup_mail.rb
and put the below code in that file:-
ActionMailer::Base.delivery_method = :smtp
ActionMailer::Base.perform_deliveries = true
ActionMailer::Base.smtp_settings = {
:address => "smtp.mandrillapp.com",
:domain => "mysite.com",
:port => 80,
:user_name => "username",
:password => "blahblahblah",
:authentication => :plain
}
ActionMailer::Base.default_url_options[:host] = "mysite.com"
Delete this from config/environments/development.rb and config/environments/production.rb
config.action_mailer.default_url_options = { :host => 'localhost:3000' }
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
address: 'smtp.mandrillapp.com',
port: '587',
domain: 'localhost:3000',
user_name: 'welcome#mysite.com',
password: 'blahblahblah',
authentication: 'plain',
enable_starttls_auto: true
}