如何修复Ruby中的'OpenSSL :: SSL :: SSLError'错误？

Question

I use CloudFlare Flexible SSL certificate.

When I try send user registration confirmation, I receive 500 error. In log:

OpenSSL::SSL::SSLError (SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hello A: unknown protocol):

My :

config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
tls: true,
    address: 'smtp.yandex.ru',
    port: 587,
    domain: 'yandex.ru',
    authentication: 'plain',
    user_name: 'admin@site.ru',
    password: 'password',
}

How can I fix this error?

Answer 1

This error usually occurs if you try to establish an encrypted connection to a server that doesn't expect this. Port 587 typically requires the use of STARTTLS after first establishing an unecrypted connection. Try removing tls: true in your configuration and using enable_starttls_auto: true instead.