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Net::SMTPでメール送信時にHELO ドメインを指定する

Last updated at Posted at 2016-09-29

参考

方法

- Net::SMTP.start('smtp.example.com', 25) {|smtp|
+ Net::SMTP.start('smtp.example.com', 25, 'yourdomain.example.com') {|smtp|
受信したメールヘッダーを確認
- Received: from localhost.localdomain (srv1 [1.2.3.4])
+ Received: from yourdomain.example.com (srv1 [1.2.3.4])
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