在运行时切换rails中的邮件传递方法

config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  address: "smtp.gmail.com",
  port: 587,
  domain: "example.com",
  user_name: "your_email@example.com",
  password: "your_password",
  authentication: "plain",
  enable_starttls_auto: true
}

config.action_mailer.delivery_method = :sendmail
config.action_mailer.sendmail_settings = {
  location: "/usr/sbin/sendmail",
  arguments: "-i"
}

config.action_mailer.smtp_settings = {
  address: ENV["SMTP_ADDRESS"],
  port: ENV["SMTP_PORT"],
  domain: ENV["SMTP_DOMAIN"],
  user_name: ENV["SMTP_USERNAME"],
  password: ENV["SMTP_PASSWORD"],
  authentication: "plain",
  enable_starttls_auto: true
}