[root@mail pkgs]# bash get_all.sh
< INFO > Generating yum repository ...
< INFO > Fetching Source Tarballs ...
< INFO > + 1/5: http://173.254.22.21/yum/misc/iRedAPD-1.3.6.tar.bz2
< INFO > + 2/5: http://173.254.22.21/yum/misc/iRedAdmin-0.1.5.tar.bz2
< INFO > + 3/5: http://173.254.22.21/yum/misc/roundcube … 5.3.tar.gz
< INFO > + 4/5: http://173.254.22.21/yum/misc/phpldapadmin-1.2.1.1.tgz
< INFO > + 5/5: http://173.254.22.21/yum/misc/phpMyAdmi … es.tar.bz2
< INFO > Validate Packages ...  [ OK ]
< INFO > Installing package(s): dialog.x86_64
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* extras: mirrors.163.com
* updates: mirrors.163.com
iRedMail                                                       |  951 B     00:00
http://173.254.22.21/yum/rpms/dovecot/r … repomd.xml: [Errno 14] HTTP Error 404 : http://173.254.22.21/yum/rpms/dovecot/r … repomd.xml
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: iRedMail-Dovecot-12. Please verify its path and try again
< ERROR > Installation failed, please check the terminal output.
< ERROR > If you're not sure what the problem is, try to get help in iRedMail
< ERROR > forum: http://www.iredmail.org/forum/

是否可以自行安装Dovecot 或者 或者用RHEL5的软件