Backup source of SMTP (No. 1)

• Backup list
• View the diff.
• View the diff current.
• View the diff for visual.
• View the backup.
• Go to SMTP.
  • 1 (2016-01-24 (Sun) 19:12:11)

- telnetでのメール送信方法
--  http://ash.jp/net/telnet_smtp.htm