原文：
教程是根据：羽飞兄弟的博客写的
http://blog.sina.com.cn/s/blog_4fed8bc50100gnbl.html
官方博客（非常全面）：
http://wiki.extmail.org/extmail_solution_for_linux
根据羽飞博客，需要修改的。
1.maildrop –v
2.phpdamin下载地址：
wget http://sourceforge.net/projects/phpmyadmin/files/phpMyAdmin/3.4.7.1/phpMyAdmin-3.4.7.1-all-languages.tar.gz/download
报错：
[root@mail ~]# /usr/sbin/authtest -s login postmaster@extmail.org extmail
Authentication FAILED: Input/output error原因是：vi /etc/authlib/authmysqlrc
注意正确的写法是：
错误的原因是：
更详细请参考：
复制下面的即可
MYSQL_SERVER localhost
MYSQL_USERNAME extmail
MYSQL_PASSWORD extmail
MYSQL_SOCKET /var/lib/mysql/mysql.sock
MYSQL_PORT 3306
MYSQL_OPT 0
MYSQL_DATABASE extmail
MYSQL_USER_TABLE mailbox
MYSQL_CRYPT_PWFIELD password
MYSQL_UID_FIELD uidnumber
MYSQL_GID_FIELD gidnumber
MYSQL_LOGIN_FIELD username
MYSQL_HOME_FIELD homedir
MYSQL_NAME_FIELD name
MYSQL_MAILDIR_FIELD maildir
MYSQL_QUOTA_FIELD quota
MYSQL_SELECT_CLAUSE SELECT username,password,"",uidnumber,gidnumber,\
CONCAT('/home/domains/',homedir), \
CONCAT('/home/domains/',maildir), \
quota, \
name \
FROM mailbox \
WHERE username = '$(local_part)@$(domain)'
再一次安装，碰到了这个问题
Can't locate /var/www/cgi-bin/extmail//lang//en_US in @INC (@INC contains: /var/www/extsuite/extmail/libs /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.8/i386-linux-thread-multi /usr/lib/perl5/5.8.8) at /var/www/extsuite/extmail/libs/Ext/Lang.pm line 65.
很古怪的，后来发现是我自己疏忽了
错误的原因是：
更详细请参考：