gem install mail
require "mail"
mail = Mail.new
mail.from = "hoge@gmail.com"
mail.to = "fuga@gmail.com"
mail.subject = "test"
mail.charset = "UTF-8"
mail.body = "テストtestてすと"
mail.add_file "/tmp/1.png"
mail["User-Agent"] = "ruby mailer 1.0"
mail.delivery_method :smtp, {
address: "smtp.gmail.com",
port: 465,
tls: true,
openssl_verify_mode: OpenSSL::SSL::VERIFY_NONE,
enable_starttls_auto: false,
authentication: :login,
domain: "gmail.com",
user_name: "hoge@gmail.com",
password: "password"
}
mail.deliver!