---> Package dovecot-managesieve.x86_64 0:0.11.12-0_5.el5 set to be updated
---> Package dovecot-sieve.x86_64 1:0.1.18-6.el5 set to be updated
---> Package httpd.x86_64 0:2.2.3-43.el5.centos set to be updated
Server/filelists_db                                                                                          | 4.0 MB     00:03     
iRedMail/filelists                                                                                           | 128 kB     00:01     
http://iredmail.org/yum/rpms/5/repodata … ts.xml.gz: [Errno -1] Metadata file does not match checksum
Trying other mirror.
Error: failure: repodata/filelists.xml.gz from iRedMail: [Errno 256] No more mirrors to try.
You could try using --skip-broken to work around the problem
You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest
The program package-cleanup is found in the yum-utils package.
< ERROR > Installation failed, please check the terminal output.
< ERROR > If you're not sure what the problem is, try to get help in iRedMail forum:
< ERROR > http://www.iredmail.org/forum/

版主帮我分析分析，我的系统是lred5.4