Unablt to send mails in my server

hi all i am trying to setup mail option in my app. and when i am trying to send mails i got this error in my production log

OpenSSL::SSL::SSLError (hostname was not match with the server certificate):
/opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/openssl/ssl-internal.rb:123:in post_connection_check' /opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/net/smtp.rb:582:in tlsconnect’
/opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/net/smtp.rb:562:in do_start' /opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/net/smtp.rb:525:in start’
app/controllers/student_controller.rb:373:in email' passenger (3.0.9) lib/phusion_passenger/rack/request_handler.rb:96:in process_request’
passenger (3.0.9) lib/phusion_passenger/abstract_request_handler.rb:513:in accept_and_process_next_request' passenger (3.0.9) lib/phusion_passenger/abstract_request_handler.rb:274:in main_loop’
passenger (3.0.9) lib/phusion_passenger/classic_rails/application_spawner.rb:321:in start_request_handler' passenger (3.0.9) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in send’
passenger (3.0.9) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in handle_spawn_application' passenger (3.0.9) lib/phusion_passenger/utils.rb:479:in safe_fork’
passenger (3.0.9) lib/phusion_passenger/classic_rails/application_spawner.rb:270:in handle_spawn_application' passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:357:in send
passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:357:in server_main_loop' passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:206:in start_synchronously’
passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:180:in start' passenger (3.0.9) lib/phusion_passenger/classic_rails/application_spawner.rb:149:in start’
passenger (3.0.9) lib/phusion_passenger/spawn_manager.rb:219:in spawn_rails_application' passenger (3.0.9) lib/phusion_passenger/abstract_server_collection.rb:132:in lookup_or_add’
passenger (3.0.9) lib/phusion_passenger/spawn_manager.rb:214:in spawn_rails_application' passenger (3.0.9) lib/phusion_passenger/abstract_server_collection.rb:82:in synchronize’
passenger (3.0.9) lib/phusion_passenger/abstract_server_collection.rb:79:in synchronize' passenger (3.0.9) lib/phusion_passenger/spawn_manager.rb:213:in spawn_rails_application’
passenger (3.0.9) lib/phusion_passenger/spawn_manager.rb:132:in spawn_application' passenger (3.0.9) lib/phusion_passenger/spawn_manager.rb:275:in handle_spawn_application’
passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:357:in __send__' passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:357:in server_main_loop’
passenger (3.0.9) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously’
passenger (3.0.9) helper-scripts/passenger-spawn-server:99

my app runs on rails 2.3.5
what is the problem what should i do to send my mails.

Cheers,
Kp

Googling for that error message yields many hits that look as if they
might be helpful.

Colin

TLDR:
You: domain.com
Them: smtp.domain.com
Rails uses: domain.com
Rails says: domain.com does not match SSL certificate, actually
matches smtp.domain.com.
Solution: Use smtp.domain.com or setup your own smtp server with your
own SSL certificate.

It looks to me like you're using your domain name when your isp does
not have a certificate for your domain on their mail server, what I am
saying is that it's perfectly fine to use domain.com but your ISP
probably has smtp.provider.com and you should opt to use
smtp.provider.com instead of domain.com because it will cause mismatch
domain errors unless you setup your own server and get your own SSL
certificate (this is because most ISP's will not put your certificate
on their mail servers it's just too much trouble.)

@

Jordon Bedwel
i am using gmail smtp.

i can able to send mails from by development mode the only issue is from production mode

now i am getting this error
Timeout::Error (execution expired):
/opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/timeout.rb:64:in open' /opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/net/smtp.rb:551:in do_start’
/opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/net/smtp.rb:551:in do_start' /opt/ruby-enterprise-1.8.7-2011.03/lib/ruby/1.8/net/smtp.rb:525:in start’