How to send email via smtp with Ruby's mail gem?

ruby email smtp
Colonel Panic picture Colonel Panic · Oct 14, 2012 · Viewed 41.2k times · Source

I am using the mail gem for Ruby https://github.com/mikel/mail

How do I send an email via an smtp server? How do I specify the address and port? And what settings should I use for Gmail?

The README on github only gives examples sending by a local server.

Answer

Simone Carletti picture Simone Carletti · Oct 14, 2012

From http://lindsaar.net/2010/3/15/how_to_use_mail_and_actionmailer_3_with_gmail_smtp

To send out via GMail, you need to configure the Mail::SMTP class to have the correct values, so to try this out, open up IRB and type the following: 

require 'mail'

options = { :address              => "smtp.gmail.com",
            :port                 => 587,
            :domain               => 'your.host.name',
            :user_name            => '<username>',
            :password             => '<password>',
            :authentication       => 'plain',
            :enable_starttls_auto => true  }



Mail.defaults do
  delivery_method :smtp, options
end

The last block calls Mail.defaults which allows us to set the global delivery method for all mail objects that get created from now on. Power user tip, you don’t have to use the global method, you can define the delivery_method directly on any individual Mail::Message object and have different delivery agents per email, this is useful if you are building an application that has multiple users with different servers handling their email.

Mail.deliver do
       to '[email protected]'
     from '[email protected]'
  subject 'testing sendmail'
     body 'testing sendmail'
end

Related questions

(Ruby) Getting Net::SMTP working with Gmail...?

Does anyone have any quality (and up-to-date) information regarding sending mail via Gmail using Ruby's Net::SMTP? I've seen several examples -- most dating from 2007 to mid-2008 and none of them work for me. I need more current examples that …

Read More
Cannot get ActionMailer working with MS Exchange via SMTP

Here's my simple test program (using ActionMailer 3.0.8, Ruby 1.9.2p180 Mac OS X): require 'rubygems' require 'action_mailer' ActionMailer::Base.delivery_method = :smtp ActionMailer::Base.smtp_settings = { :address => "my_exchange_server", :port => 25, :domain => 'my_domain.org', :authentication => :…

Read More
Send email with Ruby without SMTP server installed/running?

On Mac, I can send email from command line using the command mail, but definitely I don't have SMTP server installed on my MacBookPro. So, it is possible to send email with Ruby without an SMTP server? I don't care …

Read More