==== 提供基本信息便于分析问题并得到快速回复 ====
- iRedMail 版本：iRedMail-0.8.1
- 使用的 Linux/BSD 发行版名称及版本号： CentOS 6.2 x86_64
- 与您的问题相关的日志信息：
====

# bash iRedMail.sh

--------------------------------------------------------------------------------
Total                                           693 kB/s |  64 MB     01:34
Running rpm_check_debug
Running Transaction Test

Transaction Check Error:
file /usr/lib64/dovecot/settings/libmanagesieve_login_settings.so
conflicts between attempted installs of
dovecot-managesieve-2:0.2.6-21.el6.x86_64 and
dovecot-pigeonhole-1:2.0.9-2.el6_1.1.x86_64
file /usr/lib64/dovecot/settings/libmanagesieve_settings.so
conflicts between                  attempted installs of
dovecot-managesieve-2:0.2.6-21.el6.x86_64 and
dovecot-pigeonhole-1:2.0.9-2.el6_1.1.x86_64
file /usr/libexec/dovecot/managesieve conflicts between attempted
installs of                  dovecot-managesieve-2:0.2.6-21.el6.x86_64
and dovecot-pigeonhole-1:2.0.9-2.el6_1.1.x86_64
file /usr/libexec/dovecot/managesieve-login conflicts between
attempted instal                 ls of
dovecot-managesieve-2:0.2.6-21.el6.x86_64 and
dovecot-pigeonhole-1:2.0.9-2                 .el6_1.1.x86_64

Error Summary
-------------

< 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/

# rpm -qa|grep dovecot
#                                         //当前还未安装任何 dovecot 相关的包

[root@oa iRedMail-0.8.1]# yum repolist
Loaded plugins: etckeeper, fastestmirror, priorities, security
Loading mirror speeds from cached hostfile
21 packages excluded due to repository priority protections
repo id                                 repo name                             status
base                                    CentOS-6 - Base                      6,294
extras                                  CentOS-6 - Extras                        6
iRedMail                                iRedMail                              56+21
updates                                 CentOS-6 - Updates               1,098
repolist: 7,454

哪位大侠知道如何解决？