ActionMailer Error: hostname was not match with the server certificate

You guys may have stuck with following error while using ActionMailer with Rails 2.2.2 .

OpenSSL::SSL::SSLError (hostname was not match with the server certificate):
    /usr/lib/ruby/1.8/openssl/ssl.rb:123:in `post_connection_check'
    /usr/lib/ruby/1.8/net/smtp.rb:582:in `tlsconnect'
    /usr/lib/ruby/1.8/net/smtp.rb:562:in `do_start'
    /usr/lib/ruby/1.8/net/smtp.rb:525:in `start'
    /vendor/rails/actionmailer/lib/action_mailer/base.rb:671:in `perform_delivery_smtp'
    /vendor/rails/actionmailer/lib/action_mailer/base.rb:526:in `__send__'
    /vendor/rails/actionmailer/lib/action_mailer/base.rb:526:in `deliver!'
    /vendor/rails/actionmailer/lib/action_mailer/base.rb:392:in `method_missing'
    /app/controllers/users_controller.rb:40:in `send_email_to_confirm_user'

Actually, Rails 2.2.2 turn on STARTTLS if it is available in Net::SMTP (added in Ruby 1.8.7) and the SMTP server supports it.

If you use postfix, then you fix it quickly by disabling tls by setting “smtpd_use_tls=no” in /etc/postfix/main.cf .

Remember to restart postfix and rails app server.

Action mailer, Exception, Postfix, Rails, ROR, ruby, Rubyonrails, Tips, tls, tricks

Print article

This entry was posted by Akhil Bansal on January 28, 2009 at 1:20 pm, and is filed under ActionMailer, Exception, Postfix, ROR, Rails, Rubyonrails, Tips, ruby, tricks. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site.

Related Posts
Trackbacks (1)
Comments (4)

#1 written by km
about 1 year ago

Reply Quote

I have a VPS, that I am trying to get action mailer to work with. I don’t really want to turn off tls. Is there a way to get ruby to use tls without this error?
#2 written by Akhil Bansal
about 1 year ago

Reply Quote

I think the latest version of rails has an option to turn off tls for action mailer
#3 written by Amit Solanki
about 11 months ago

Reply Quote

Thanks again for the quick info.
#4 written by Prashant
about 1 month ago

Reply Quote

Thanku sir

Sequence Mediaworks Blog » Frustrations abound: “hostname was not match with the server certificate”

Edge Rails: Time#current

about 1 month ago - 2 comments

Returns Time.zone.now when config.time_zone is set, otherwise just returns Time.now

Edge Rails: Array#random_element

about 3 months ago - 1 comment

Array#rand is deprecated in favor of Array#random_element and will be removed in Rails 3. As per the comment added to the commit: Array#rand is deprecated because it masks Kernel#rand within the Array class itself, which may be used by a 3rd party library extending Array in turn. See https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/4555

Edge Rails Updates

about 3 months ago - 7 comments

New edge rails deprecations: Time#last_year is deprecated in favor of Time#prev_year Time#last_month is deprecated in favor of Time#prev_month Date#last_year is deprecated in favor of Date#prev_year Date#last_month is deprecated in favor of Date#prev_month New methods/aliases: Date#sunday: Returns a new Date representing the end of this week Time#sunday: Returns a new Time representing the end of this

Download recursive directories with wget using Username & Password for FTP

about 4 months ago - 1 comment

Using ftp to download multiple files using ‘mget’ command is pretty common, however it downloads files from current directory only. But if you need to download recursive directories with all its content then? And specially when you don’t have shell access to the remote machine and you don’t have access to archive the targeted folder?

uninitialized constant ActionMailer::Quoting::Encoding

about 4 months ago - 1 comment

Just a quick note, If you are getting “uninitialized constant ActionMailer::Quoting::Encoding” while using ActionMailer, then make sure that your mailer look like: class Notifier < ActionMailer::Base def signup_notification(recipient) recipients recipient.email_address_with_name bcc ["bcc@example.com"] from "system@example.com" subject "New account information" body :account => recipient end end Actually, yesterday we were getting “uninitialized constant ActionMailer::Quoting::Encoding” while using ActionMailer

Jquery Full Calendar with RubyOnRails

about 5 months ago - 5 comments

Cross Posted from http://vinsol.com/blog Contrary to popular belief, working on a client project gives us a generous margin of creativity and explore innovative solutions.Take the example of a recent project I was working on. The client required a collaboration-based calendar module for their application similar to Google Calendar. Initially we started developing it from scratch

11 Things to Consider Before Deploying Your Rails Application

about 9 months ago - 2 comments

Cross Posted from http://vinsol.com/blog At VinSol, we have been developing and deploying Rails applications for more than four years. During this period, we have identified some best practices that we prefer to follow while deploying rails application to production server. Below is the checklist of these practices: 1. Ensure that NS records and MX

Displaying information about your git repository

about 9 months ago - 1 comment

Want to see information about your git repository? Based on a discussion here Duane Johnson wrote a very useful bash script. I am using this script from months and would like to share with you. You can download this script here(). You can also add an alias like below, so that I can be a

Change timezone of ubuntu machine from command line

about 1 year ago - 9 comments

If you guys want to change timezone of your ubuntu machine then you can do it by issuing: dpkg-reconfigure tzdata This may be helpful if you deal with servers.

Multiple versions of ruby on ubuntu

about 1 year ago - 1 comment

Three-Four days ago I was in a situation where I need to have multiple versions of ruby and rubygems on my ubuntu machine. I was lucky, I found an awesome article http://blog.michaelgreenly.com/2008/08/multiple-versions-of-ruby-on-ubuntu-2.html. This really solved my problem, Many thanks to Michael Greenly.

ActionMailer Error: hostname was not match with the server certificate

My latest tweets