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Ruby: Starttls でメールの送信

Last updated at Posted at 2020-07-08

こちらと同じことを Ruby で行いました。
Python3: Starttls でメールの送信
hi-ho.ne.jp で試しました。

ライブラリーのインストール

gem install mail
gem install dotenv
hi-ho.rb
#! /usr/bin/ruby
# -*- encoding: utf-8 -*-
#
#	hi-ho.rb
#
#					Jul/08/2020
#
# ---------------------------------------------------------------------
require "mail"
require "dotenv"

STDERR.puts	"*** 開始 ***"

Dotenv.load
server = ENV['SERVER']
port = ENV['PORT']
usr = ENV['USR']
password = ENV['PASSWORD']
from = ENV['FROM']
to = ENV['TO']
#
puts server
puts port

str_out = "Good Morning\n"
str_out += "こんにちは。\n"
str_out += "Jul/08/2020\n"
str_out += "PM 15:58\n"

mail = Mail.new do
  from    from
  to      to
  subject "Hello from Hi-ho PM 15:58"
  content_type 'text/plain; charset=UTF-8'
  body    str_out
end

mail.delivery_method(:smtp,
  address:        server,
  port:           port,
  authentication: :login,
  user_name:      usr,
  password:       password
)

mail.deliver

STDERR.puts	"*** 終了 ***"
# ---------------------------------------------------------------------
.env
SERVER = 'hi-ho.mose-mail.jp'
PORT = 587
USR = '****@hi-ho.ne.jp'
PASSWORD = '****'
FROM = '****@hi-ho.ne.jp'
TO = 'sample@example.com'

実行結果

$ ./hi-ho.rb 
*** 開始 ***
hi-ho.mose-mail.jp
587
*** 終了 ***

次のバージョンで確認しました。

$ ruby --version
ruby 3.0.4p208 (2022-04-12 revision 3fa771dded) [x86_64-linux]
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