[root@mail iRedMail-0.7.3]# bash iRedMail.sh
< INFO > Generating yum repository ...
< INFO > Fetching Source Tarballs ...
< INFO > + 1/5: http://iredmail.org/yum/misc/iRedAPD-1.3.6.tar.bz2
< INFO > + 2/5: http://iredmail.org/yum/misc/iRedAdmin-0.1.6.tar.bz2
< INFO > + 3/5: http://iredmail.org/yum/misc/roundcubemail-0.5.4.tar.gz
< INFO > + 4/5: http://iredmail.org/yum/misc/phpldapadmin-1.2.1.1.tgz
< INFO > + 5/5: http://iredmail.org/yum/misc/phpMyAdmin … es.tar.bz2
< INFO > Validate Packages ...md5sum: misc/iRedAdmin-0.1.6.tar.bz2: No such file or directory
md5sum: misc/phpldapadmin-1.2.1.1.tgz: No such file or directory
md5sum: WARNING: 2 of 5 listed files could not be read
md5sum: WARNING: 3 of 3 computed checksums did NOT match
misc/iRedAPD-1.3.6.tar.bz2: FAILED
misc/iRedAdmin-0.1.6.tar.bz2: FAILED open or read
misc/roundcubemail-0.5.4.tar.gz: FAILED
misc/phpldapadmin-1.2.1.1.tgz: FAILED open or read
misc/phpMyAdmin-3.4.3.2-all-languages.tar.bz2: FAILED
        [ FAILED ]
< ERROR > MD5 check failed. Check your rpm packages. Script exit ...

< INFO > Installing package(s): dialog.i386
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.mirror.cdnetworks.com
* extras: centos.mirror.cdnetworks.com
* updates: ftp.iij.ad.jp
http://iredmail.org/yum/rpms/5/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (104, 'Connection reset by peer')>
Trying other mirror.
http://iredmail.org/yum/rpms/5/repodata/primary.xml.gz: [Errno 4] IOError: <urlopen error (104, 'Connection reset by peer')>
Trying other mirror.
Error: failure: repodata/primary.xml.gz from iRedMail: [Errno 256] No more mirrors to try.
< 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/
[root@mail iRedMail-0.7.3]# uname -a
Linux mail.star.com 2.6.18-274.7.1.el5 #1 SMP Thu Oct 20 16:20:37 EDT 2011 i686 i686 i386 GNU/Linux

安装提示的问题，请版主解答，谢谢