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[WIP] SquirrelMail 설치 및 Apache 연동 설정 (CentOS/RHEL)
SquirrelMail은 PHP 기반의 웹메일(Webmail) 서비스로 IMAP 서버와 연동하여 브라우저 환경에서 메일을 사용할 수 있도록 지원합니다.
1. Apache(httpd) 설치
먼저 웹메일 서비스를 제공하기 위한 Apache 웹 서버를 설치합니다.
yum install httpd
systemctl enable httpd
systemctl start httpd
systemctl status httpd
2. MySQL 설치
메일 시스템에서 사용할 데이터베이스 환경이 필요한 경우 MySQL을 설치합니다.
yum install -y mysql mysql-server
systemctl enable mysqld
systemctl start mysqld
3. PHP 설치
SquirrelMail은 PHP 기반으로 동작하기 때문에 PHP 환경을 구성합니다.
yum install -y php
php -v
4. PHP MySQL 연동 모듈 설치
PHP에서 MySQL을 사용할 수 있도록 연동 모듈을 설치합니다.
yum install -y php-mysql
systemctl restart httpd
5. PHP 문자셋 모듈 설치
한글 메일 및 멀티바이트 문자를 정상 처리하기 위해 mbstring 모듈을 설치합니다.
yum install -y php-mbstring
systemctl restart httpd
6. SquirrelMail 설치
SquirrelMail 패키지를 설치합니다.
yum -y install squirrelmail
rpm -ql squirrelmail | head
기본 설치 경로
/usr/share/squirrelmail
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7. SquirrelMail 환경 설정
설정 파일 생성 및 수정은 제공되는 설정 도구를 이용합니다.
/usr/share/squirrelmail/config/conf.pl
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
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
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]: sangchul.kr
SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings
General
-------
1. Domain : sangchul.kr
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 >> A
SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings
General
-------
1. Domain : sangchul.kr
2. Invert Time : false
3. Sendmail or SMTP : Sendmail
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. Change Sendmail Config : /usr/sbin/sendmail
H. Hide IMAP Server Settings
R Return to Main Menu
C Turn color off
S Save data
Q Quit
Command >> 4
This is the hostname where your IMAP server can be contacted.
[localhost]: sangchul.kr
SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings
General
-------
1. Domain : sangchul.kr
2. Invert Time : false
3. Sendmail or SMTP : Sendmail
IMAP Settings
--------------
4. IMAP Server : sangchul.kr
5. IMAP Port : 143
6. Authentication type : login
7. Secure IMAP (TLS) : false
8. Server software : uw
9. Delimiter : /
B. Change Sendmail Config : /usr/sbin/sendmail
H. Hide IMAP Server Settings
R Return to Main Menu
C Turn color off
S Save data
Q Quit
Command >> 8
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.
cyrus = Cyrus IMAP server
uw = University of Washington's IMAP server
exchange = Microsoft Exchange IMAP server
courier = Courier IMAP server
macosx = Mac OS X Mailserver
hmailserver = hMailServer
other = Not one of the above servers
[uw]: other
SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings
General
-------
1. Domain : sangchul.kr
2. Invert Time : false
3. Sendmail or SMTP : Sendmail
IMAP Settings
--------------
4. IMAP Server : sangchul.kr
5. IMAP Port : 143
6. Authentication type : login
7. Secure IMAP (TLS) : false
8. Server software : other
9. Delimiter : /
B. Change Sendmail Config : /usr/sbin/sendmail
H. Hide IMAP Server Settings
R Return to Main Menu
C Turn color off
S Save data
Q Quit
Command >> S
Data saved in config.php
Press enter to continue...
SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Server Settings
General
-------
1. Domain : sangchul.kr
2. Invert Time : false
3. Sendmail or SMTP : Sendmail
IMAP Settings
--------------
4. IMAP Server : sangchul.kr
5. IMAP Port : 143
6. Authentication type : login
7. Secure IMAP (TLS) : false
8. Server software : other
9. Delimiter : /
B. Change Sendmail Config : /usr/sbin/sendmail
H. Hide IMAP Server Settings
R Return to Main Menu
C Turn color off
S Save data
Q Quit
Command >> Q
Exiting conf.pl.
You might want to test your configuration by browsing to
http://your-squirrelmail-location/src/configtest.php
Happy SquirrelMailing!
8. SquirrelMail Apache Alias 설정
SquirrelMail 설치 시 Apache 설정 파일이 생성됩니다.
cat /etc/httpd/conf.d/squirrelmail.conf
#
# SquirrelMail is a webmail package written in PHP.
#
Alias /webmail /usr/share/squirrelmail
9. Apache VirtualHost 설정
웹메일 전용 VirtualHost를 구성합니다.
vim /etc/httpd/conf/httpd.conf
...
# The first VirtualHost section is used for requests without a known
# server name.
#
<VirtualHost *:80>
ServerAdmin webmaster@sangchul.kr
DocumentRoot /usr/share/squirrelmail
ServerName webmail.sangchul.kr
ErrorLog logs/webmail.sangchul.kr-error_log
CustomLog logs/webmail.sangchul.kr-access_log common
</VirtualHost>
apachectl configtest
systemctl restart httpd
10. SquirrelMail 접속 테스트
브라우저에서 접속합니다.
http://webmail.sangchul.kr
또는
http://mail.sangchul.kr/webmail/src/login.php

11. SquirrelMail 설정 테스트
설정 검증 페이지
http://webmail.sangchul.kr/src/configtest.php
확인 항목
- PHP 동작 여부
- IMAP 연결 여부
- SquirrelMail 설정 상태
SquirrelMail은 단독 메일 서버가 아니라 웹 인터페이스 역할을 수행하며 실제 메일 송수신은 SMTP(Postfix 등)와 IMAP(Dovecot 등) 서버가 담당합니다.
아파치 구성 테스트 systemctl httpd 다시 시작
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