Memo/spam

softbank
- 受信許可・拒否設定｜SoftBankの優先順序を利用する
```
受信許可リスト設定
受信拒否リスト設定
ケータイ/PHSからのみ許可設定
```
- 基本
  - 「受信許可リスト設定」に許可したいPCメールを設定
  - 「受信拒否リスト設定」に拒否したいメールを設定
  - 「ケータイ/PHSからのみ許可設定」を設定
- MySoftBankのメール設定 -> 迷惑メールブロックの設定 -> 個別設定
- 受信許可・拒否設定に以下を追加
- 受信許可リスト設定
- 受信拒否リスト設定

↑

受信側 †

一般利用者の皆様へ : 迷惑メール対策委員会
- メールリーダの設定 : 迷惑メール対策委員会受信ソフト別設定

↑

送信側 †

第三者中継チェック
- www.rbl.jp

ブラックリストDBの定期確認

DNS
- 逆引き設定を忘れない
  - 正逆一致しないと受け取らないMTA多数あり
- SPFレコードを設定する
  - RFC4408
  - 間違いから学ぶSPFレコードの正しい書き方 : 迷惑メール対策委員会
  - 確認
  - SPF Records - MXTOOLBOX
  - SPF Record Testing Tools
```
例 @example.com の場合
メールサーバ：mail.example.com

メール送信サーバ:mail.example.com
送信者メールアドレス: postmaster@example.com
```
  - 確認 linux
```
dig txt example.com
```
  - 確認 windows
```
nslookup -q=txt example.com
```

DKIM
- DKIM導入リコメンド
- 国内の主要送信事業者11社がDKIMに対応完了(2011/7/26)

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