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■概要

Gmail、Hotmail、Yahoo!メール、そしてレンタルサーバーに来るメールすべてを自宅のメールサーバーで一覧、確認できるようにしています。使っているのはWebブラウザ上でメールができるWebmailシステムSquirrelMailです。
Webサーバーリポジトリの追加(RPMforge、EPEL)Webサーバー間通信内容暗号化メールサーバー(要IMAP)が構築済であること

■SquirrelMailのインストール

[root@ufuso ~]# yum --enablerepo=epel -y install squirrelmail ← SquirrelMail
インストール
Installed:
  squirrelmail.noarch 0:1.4.22-3.el6                                            

Complete!

[root@ufuso ~]# cd /usr/share/squirrelmail/plugins/ ← pluginsフォルダへ移動

[root@ufuso plugins]# wget http://www.squirrelmail.org/plugins/compatibility-2.0.16-1.0.tar.gz
 ← 最新のプラグインをダウンロード
`compatibility-2.0.16-1.0.tar.gz' に保存中

100%[======================================>] 41,497      34.8K/s 時間 1.2s    

2013-04-18 19:25:55 (34.8 KB/s) - `compatibility-2.0.16-1.0.tar.gz' へ保存完了 [41497/41497]

[root@ufuso plugins]# wget http://www.squirrelmail.org/plugins/empty_trash-1.4-1.2.2.tar.gz
 ← 最新のプラグインをダウンロード
`empty_trash-1.4-1.2.2.tar.gz' に保存中

100%[======================================>] 2,715       --.-K/s 時間 0s      

2013-04-18 19:26:03 (60.9 MB/s) - `empty_trash-1.4-1.2.2.tar.gz' へ保存完了 [2715/2715]

[root@ufuso plugins]# wget http://www.squirrelmail.org/plugins/secure_login-1.4-1.2.8.tar.gz
 ← 最新のプラグインをダウンロード
`secure_login-1.4-1.2.8.tar.gz' に保存中

100%[======================================>] 16,993      28.8K/s 時間 0.6s    

2013-04-18 19:26:14 (28.8 KB/s) - `secure_login-1.4-1.2.8.tar.gz' へ保存完了 [16993/16993]

[root@ufuso plugins]# tar zxvf compatibility-2.0.16-1.0.tar.gz  ← ファイルを展開

[root@ufuso plugins]# tar zxvf empty_trash-1.4-1.2.2.tar.gz  ← ファイルを展開

[root@ufuso plugins]# tar zxvf secure_login-1.4-1.2.8.tar.gz ← ファイルを展開

[root@ufuso plugins]# rm -f *.tar.gz ← ダウンロードファイルの削除 

[root@ufuso plugins]# cd ← ルートディレクトリへ戻る   

■SquirrelMailの設定

[root@ufuso ~]# /usr/share/squirrelmail/config/conf.pl ← 設定スクリプト実行
SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color off
S   Save data
Q   Quit

Command >> 1 ← Organization Preferences



SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Organization Preferences
1.  Organization Name      : SquirrelMail
2.  Organization Logo      : ../images/sm_logo.png
3.  Org. Logo Width/Height : (308/111)
4.  Organization Title     : SquirrelMail $version
5.  Signout Page           : 
6.  Top Frame              : _top
7.  Provider link          : http://squirrelmail.org/
8.  Provider name          : SquirrelMail

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 5 ← Signout Page選択

When users click the Sign Out button they will be logged out and
then sent to signout_page.  If signout_page is left empty,
(hit space and then return) they will be taken, as normal,
to the default and rather sparse SquirrelMail signout page.

[]: /webmail ← 入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Organization Preferences
1.  Organization Name      : SquirrelMail
2.  Organization Logo      : ../images/sm_logo.png
3.  Org. Logo Width/Height : (308/111)
4.  Organization Title     : SquirrelMail $version
5.  Signout Page           : /webmail
6.  Top Frame              : _top
7.  Provider link          : http://squirrelmail.org/
8.  Provider name          : SquirrelMail

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> r ← メイン・メニューに戻る


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color off
S   Save data
Q   Quit

Command >> 2 ← Server Settings選択



SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : localhost
2.  Invert Time            : false
3.  Sendmail or SMTP       : Sendmail

A.  Update IMAP Settings   : localhost:143 (uw)
B.  Change Sendmail Config : /usr/sbin/sendmail

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 1 ← Domain選択

The domain name is the suffix at the end of all email addresses.  If
for example, your email address is jdoe@example.com, then your domain
would be example.com.

[localhost]: ufuso.dip.jp ← 自ドメイン名入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : Sendmail

A.  Update IMAP Settings   : localhost:143 (uw)
B.  Change Sendmail Config : /usr/sbin/sendmail

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 3 ← Sendmail or SMTP選択

You now need to choose the method that you will use for sending
messages in SquirrelMail.  You can either connect to an SMTP server
or use sendmail directly.

  1.  Sendmail
  2.  SMTP
Your choice [1/2] [1]: 2 ← SMTP選択

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

A.  Update IMAP Settings   : localhost:143 (uw)
B.  Update SMTP Settings   : localhost:25

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> A ← Update IMAP Settings選択


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

IMAP Settings
--------------
4.  IMAP Server            : localhost
5.  IMAP Port              : 143
6.  Authentication type    : login
7.  Secure IMAP (TLS)      : false
8.  Server software        : uw
9.  Delimiter              : /

B.  Update SMTP Settings   : localhost:25
H.  Hide IMAP Server Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 4 ←  IMAP Server選択

This is the hostname where your IMAP server can be contacted.
[localhost]: ufuso.dip.jp ←  自IMAP Server名入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

IMAP Settings
--------------
4.  IMAP Server            : ufuso.dip.jp
5.  IMAP Port              : 143
6.  Authentication type    : login
7.  Secure IMAP (TLS)      : false
8.  Server software        : uw
9.  Delimiter              : /

B.  Update SMTP Settings   : localhost:25
H.  Hide IMAP Server Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 8 ←  Server software選択

Each IMAP server has its own quirks.  As much as we tried to stick
to standards, it doesn't help much if the IMAP server doesn't follow
the same principles.  We have made some work-arounds for some of
these servers.  If you would like to use them, please select your
IMAP server.  If you do not wish to use these work-arounds, you can
set this to "other", and none will be used.
    bincimap    = Binc IMAP server
    courier     = Courier IMAP server
    cyrus       = Cyrus IMAP server
    dovecot     = Dovecot Secure IMAP server
    exchange    = Microsoft Exchange IMAP server
    hmailserver = hMailServer
    macosx      = Mac OS X Mailserver
    mercury32   = Mercury/32
    uw          = University of Washington's IMAP server
    gmail       = IMAP access to Google mail (Gmail) accounts
    other       = Not one of the above servers
[uw]: dovecot ←  dovecot入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

IMAP Settings
--------------
4.  IMAP Server            : ufuso.dip.jp
5.  IMAP Port              : 143
6.  Authentication type    : login
7.  Secure IMAP (TLS)      : false
8.  Server software        : dovecot
9.  Delimiter              : /

B.  Update SMTP Settings   : localhost:25
H.  Hide IMAP Server Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 9 ←  Delimiter

This is the delimiter that your IMAP server uses to distinguish between
folders.  For example, Cyrus uses '.' as the delimiter and a complete
folder would look like 'INBOX.Friends.Bob', while UW uses '/' and would
look like 'INBOX/Friends/Bob'.  Normally this should be left at 'detect'
but if you are sure you know what delimiter your server uses, you can
specify it here.

To have it autodetect the delimiter, set it to 'detect'.

[/]: detect ←  detect入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

IMAP Settings
--------------
4.  IMAP Server            : ufuso.dip.jp
5.  IMAP Port              : 143
6.  Authentication type    : login
7.  Secure IMAP (TLS)      : false
8.  Server software        : dovecot
9.  Delimiter              : detect

B.  Update SMTP Settings   : localhost:25
H.  Hide IMAP Server Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> B ←  Update SMTP Settings選択


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

SMTP Settings
-------------
4.   SMTP Server           : localhost
5.   SMTP Port             : 25
6.   POP before SMTP       : false
7.   SMTP Authentication   : none
8.   Secure SMTP (TLS)     : false
9.   Header encryption key : 

A.  Update IMAP Settings   : ufuso.dip.jp:143 (dovecot)
H.  Hide SMTP Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 4 ←  SMTP Server選択

This is the hostname of your SMTP server.
[localhost]:  ufuso.dip.jp ← 自SMTPサーバー名入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

SMTP Settings
-------------
4.   SMTP Server           : ufuso.dip.jp
5.   SMTP Port             : 25
6.   POP before SMTP       : false
7.   SMTP Authentication   : none
8.   Secure SMTP (TLS)     : false
9.   Header encryption key : 

A.  Update IMAP Settings   : ufuso.dip.jp:143 (dovecot)
H.  Hide SMTP Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 7 ←  SMTP Authentication選択

If you have already set the hostname and port number, I can try to
automatically detect the mechanisms your SMTP server supports.
Auto-detection is *optional* - you can safely say "n" here.

Try to detect auth mechanisms? [y/N]: y ←  y入力
Trying to detect supported methods (SMTP)...
Testing none:		SUPPORTED
Testing login:		SUPPORTED
Testing plain:		SUPPORTED
Testing CRAM-MD5:	NOT SUPPORTED
Testing DIGEST-MD5:	NOT SUPPORTED

What authentication mechanism do you want to use for SMTP connections?
none - Your SMTP server does not require authorization.
login - Plaintext. If you can do better, you probably should.
plain - Plaintext. If you can do better, you probably should.
cram-md5 - Slightly better than plaintext.
digest-md5 - Privacy protection - better than cram-md5.

*** YOUR SMTP SERVER MUST SUPPORT THE MECHANISM YOU CHOOSE HERE ***
If you don't understand or are unsure, you probably want "none"

none, login, plain, cram-md5, or digest-md5 [none]: login ←  login入力
SMTP authentication uses IMAP username and password by default.

Would you like to use other login and password for all SquirrelMail 
SMTP connections? [y/N]:n ←  n入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings

General
-------
1.  Domain                 : ufuso.dip.jp
2.  Invert Time            : false
3.  Sendmail or SMTP       : SMTP

SMTP Settings
-------------
4.   SMTP Server           : ufuso.dip.jp
5.   SMTP Port             : 25
6.   POP before SMTP       : false
7.   SMTP Authentication   : login (with IMAP username and password)
8.   Secure SMTP (TLS)     : false
9.   Header encryption key : 

A.  Update IMAP Settings   : ufuso.dip.jp:143 (dovecot)
H.  Hide SMTP Settings

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> r ←  メイン・メニューに戻る


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color off
S   Save data
Q   Quit

Command >> 10 ←   Languages選択



SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Language preferences
1.  Default Language       : en_US
2.  Default Charset        : iso-8859-1
3.  Enable lossy encoding  : false

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 1 ←  Default Language選択

SquirrelMail attempts to set the language in many ways.  If it
can not figure it out in another way, it will default to this
language.  Please use the code for the desired language.

[en_US]: ja_JP ← ja_JP入力





SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Language preferences
1.  Default Language       : ja_JP
2.  Default Charset        : iso-8859-1
3.  Enable lossy encoding  : false

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 2 ← Default Charset選択

This option controls what character set is used when sending
mail and when sending HTML to the browser.

This option is used only when default language is 'en_US'.

[iso-8859-1]: iso-2022-jp ← iso-2022-jp入力




SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Language preferences
1.  Default Language       : ja_JP
2.  Default Charset        : iso-2022-jp
3.  Enable lossy encoding  : false

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> r ← メイン/メニューに戻る

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color off
S   Save data
Q   Quit

Command >> 4 ← General Options選択



SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
General Options
1.  Data Directory               : /var/lib/squirrelmail/prefs/
2.  Attachment Directory         : /var/spool/squirrelmail/attach/
3.  Directory Hash Level         : 0
4.  Default Left Size            : 150
5.  Usernames in Lowercase       : false
6.  Allow use of priority        : true
7.  Hide SM attributions         : false
8.  Allow use of receipts        : true
9.  Allow editing of identity    : true
    Allow editing of name        : true
    Remove username from header  : false
10. Allow server thread sort     : true
11. Allow server-side sorting    : true
12. Allow server charset search  : true
13. Enable UID support           : true
14. PHP session name             : SQMSESSID
15. Location base                : 
16. Only secure cookies if poss. : true
17. Disable secure forms         : false
18. Page referal requirement     : 

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 7 ← Hide SM attributions選択


Hide SM attributions (y/n) [n]: y ← y入力

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
General Options
1.  Data Directory               : /var/lib/squirrelmail/prefs/
2.  Attachment Directory         : /var/spool/squirrelmail/attach/
3.  Directory Hash Level         : 0
4.  Default Left Size            : 150
5.  Usernames in Lowercase       : false
6.  Allow use of priority        : true
7.  Hide SM attributions         : true
8.  Allow use of receipts        : true
9.  Allow editing of identity    : true
    Allow editing of name        : true
    Remove username from header  : false
10. Allow server thread sort     : true
11. Allow server-side sorting    : true
12. Allow server charset search  : true
13. Enable UID support           : true
14. PHP session name             : SQMSESSID
15. Location base                : 
16. Only secure cookies if poss. : true
17. Disable secure forms         : false
18. Page referal requirement     : 

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> r ← メイン/メニューに戻る


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages

D.  Set pre-defined settings for specific IMAP servers

C   Turn color off
S   Save data
Q   Quit

Command >> 8 ← Plugins選択



SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Plugins
  Installed Plugins
    1. delete_move_next
    2. squirrelspell
    3. newmail

  Available Plugins:
    4. administrator
    5. bug_report
    6. calendar
    7. compatibility
    8. empty_trash
    9. filters
    10. fortune
    11. info
    12. listcommands
    13. mail_fetch
    14. message_details
    15. secure_login
    16. sent_subfolders
    17. spamcop
    18. test
    19. translate

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 7 ← compatibility選択


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Plugins
  Installed Plugins
    1. delete_move_next
    2. squirrelspell
    3. newmail
    4. compatibility

  Available Plugins:
    5. administrator
    6. bug_report
    7. calendar
    8. empty_trash
    9. filters
    10. fortune
    11. info
    12. listcommands
    13. mail_fetch
    14. message_details
    15. secure_login
    16. sent_subfolders
    17. spamcop
    18. test
    19. translate

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 8 ← empty_trash選択


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Plugins
  Installed Plugins
    1. delete_move_next
    2. squirrelspell
    3. newmail
    4. compatibility
    5. empty_trash

  Available Plugins:
    6. administrator
    7. bug_report
    8. calendar
    9. filters
    10. fortune
    11. info
    12. listcommands
    13. mail_fetch
    14. message_details
    15. secure_login
    16. sent_subfolders
    17. spamcop
    18. test
    19. translate

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> 15 ← secure_login選択


SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Plugins
  Installed Plugins
    1. delete_move_next
    2. squirrelspell
    3. newmail
    4. compatibility
    5. empty_trash
    6. secure_login

  Available Plugins:
    7. administrator
    8. bug_report
    9. calendar
    10. filters
    11. fortune
    12. info
    13. listcommands
    14. mail_fetch
    15. message_details
    16. sent_subfolders
    17. spamcop
    18. test
    19. translate

R   Return to Main Menu
C   Turn color off
S   Save data
Q   Quit

Command >> q ← メイン/メニューに戻る

You have not saved your data.
Save?  [Y/n]: y ← y入力
Data saved in config.php

Exiting conf.pl.
You might want to test your configuration by browsing to
http://your-squirrelmail-location/src/configtest.php
Happy SquirrelMailing!

■secure_loginプラグインの編集

[root@ufuso ~]# cd /usr/share/squirrelmail/plugins/secure_login
 ← secure_loginプラグインディレクトリへ移動
 
[root@ufuso secure_login]# cp config.sample.php config.php ← 設定ファイル作成
 
[root@ufuso secure_login]# vi config.php
 ← 設定ファイル編集
   // if you want user sessions to remain in SSL for their entire duration,
   // set the following to zero:
   //
   $change_back_to_http_after_login = 0; ← 0へ変更(ログイン後もSSL通信を継続)
 
[root@ufuso secure_login]#  /etc/rc.d/init.d/httpd reload ← httpd の再起動
httpd を再読み込み中:

■SELinuxを有効にしている場合

[root@ufuso ~]#/usr/sbin/setsebool -P httpd_can_network_connect on ← Webからの
ネットワーク接続を許可


■root宛メールも確認出きるように転送する

[root@ufuso ~]#sed -i '/^root:/d' /etc/aliases ← 旧root宛メール転送設定削除
 
[root@ufuso ~]#  echo "root: ufuso@gmail.com" >> /etc/aliases ← root宛メールを
他のメルアド(ufuso@gmail.comは例示)宛に転送する
 
[root@ufuso ~]# newaliases ← 転送設定反映
 
[root@ufuso ~]# echo test|mail root ← テストメールをroot宛に送信する

■動作確認

1.http://サーバー名/webmail/にアクセスして、赤枠1のようにhttps://サーバー名/webmail/が表示されることを確認します。公的認証が無いので怪しいサイトになってしまいますが、赤枠2をクリックしてログイン画面に進みます。

2.ログイン名にはCentOS6.4のユーザー名(例示では「tu」)、パスワードにはtuのユーザーパスワードを入力します。

3.ログイン後の画面です。rootからのtestメールが受信できていることを確認してください。送信ができることも確認を。

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