Rails 4 smtp Openssl error -


we using mandrill in our rails app , upgraded rails 3 rails 4.2.3. reason, getting error openssl::ssl::sslerror: ssl_connect syscall returned=5 errno=0 state=sslv3 read finished a whenever actionmailer tries send emails.

our app hosted on heroku , ssl certificate wildcard. know i've read other people openssl problems when comes dealing ssl, don't know start.

here's current config actionmailer , mandrill:

  actionmailer::base.smtp_settings = {       :port =>           '587',       :address =>        'smtp.mandrillapp.com',       :user_name =>      env['mandrill_username'],       :password =>       env['mandrill_apikey'],       :domain =>         'heroku.com',       :authentication => :plain   }

is there configuration option changed may missing?

switch:

authentication => :plain

with: 

:authentication => :login

and add:

:enable_starttls_auto => true

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