# apt-get update
# apt-get install libapache2-mod-php4
# apt-get install squirrelmail

# squirrelmail-configure

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 on
S   Save data
Q   Quit

Command >> 2	←2を入力してEnter

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

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

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

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

Command >> 1	←1を入力してEnter
[localhost]: chibi.name	←ドメイン名を記述

Command >> r	←rで戻る

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 on
S   Save data
Q   Quit

Command >> 10	←10と入力してEnter


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 on
S   Save data
Q   Quit

Command >> 1	←1と入力してEnter
[en_US]: ja_JP	←使用言語の設定

Command >> 2	←2と入力してEnter
[iso-8859-1]: ISO-2022-JP	←Charsetの変更

Command >> r	←rで戻る

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 on
S   Save data
Q   Quit

Command >> 4	←4と入力してEnter


General Options
1.  Data Directory              : /var/lib/squirrelmail/data/
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/true
10. Allow server thread sort    : false
11. Allow server-side sorting   : false
12. Allow server charset search : true
13. Enable UID support          : true
14. PHP session name            : SQMSESSID

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

Command >> 7	←7と入力してEnter

Hide SM attributions (y/n) [n]: y	←バージョン情報を隠す(false→true)


Command >> s	←設定を保存

Data saved in config.php
Press enter to continue...		←空Enter

Command >> q	←終了

# vi /etc/apache2/conf.d/squirrelmail.conf	←新規で作成
Alias /webmail /usr/share/squirrelmail
<Location /webmail>
SSLRequireSSL
</Location>

# /etc/init.d/apache2 restart