首先安装需要的各种软件，过程如下：[root@test etc]# rpm -q sendmail m4package sendmail is not installedpackage m4 is not installed[root@test etc]# yum install sendmailLoaded plugins: downloadonly, fastestmirrorLoading mirror speeds from cached hostfile* base: mirror.bit.edu.cn* extras: mirror.bit.edu.cn* updates: mirror.bit.edu.cnaddons | 1.9 kB 00:00base | 1.1 kB 00:00extras | 2.1 kB 00:00updates | 1.9 kB 00:00Excluding Packages in global exclude listFinishedSetting up Install ProcessResolving Dependencies–> Running transaction check—> Package sendmail.x86_64 0:8.13.8-8.1.el5_7 set to be updated–> Processing Dependency: /usr/sbin/saslauthd for package: sendmail–> Processing Dependency: procmail for package: sendmail–> Processing Dependency: libhesiod.so.0()(64bit) for package: sendmail–> Running transaction check—> Package cyrus-sasl.x86_64 0:2.1.22-7.el5_8.1 set to be updated–> Processing Dependency: cyrus-sasl-lib = 2.1.22-7.el5_8.1 for package: cyrus-sasl—> Package hesiod.x86_64 0:3.1.0-8 set to be updated—> Package procmail.x86_64 0:3.22-17.1.el5.centos set to be updated–> Running transaction check—> Package cyrus-sasl-lib.x86_64 0:2.1.22-7.el5_8.1 set to be updated–> Finished Dependency Resolution
Dependencies Resolved
================================================================================Package Arch Version Repository Size================================================================================Installing:sendmail x86_64 8.13.8-8.1.el5_7 base 637 kInstalling for dependencies:cyrus-sasl x86_64 2.1.22-7.el5_8.1 updates 1.2 Mhesiod x86_64 3.1.0-8 base 18 kprocmail x86_64 3.22-17.1.el5.centos base 172 kUpdating for dependencies:cyrus-sasl-lib x86_64 2.1.22-7.el5_8.1 updates 130 k
Transaction Summary================================================================================Install 4 Package(s)Upgrade 1 Package(s)
Total download size: 2.1 MIs this ok [y/N]: yDownloading Packages:(1/5): hesiod-3.1.0-8.x86_64.rpm | 18 kB 00:00(2/5): cyrus-sasl-lib-2.1.22-7.el5_8.1.x86_64.rpm | 130 kB 00:00(3/5): procmail-3.22-17.1.el5.centos.x86_64.rpm | 172 kB 00:00(4/5): sendmail-8.13.8-8.1.el5_7.x86_64.rpm | 637 kB 00:00(5/5): cyrus-sasl-2.1.22-7.el5_8.1.x86_64.rpm | 1.2 MB 00:01——————————————————————————–Total 918 kB/s | 2.1 MB 00:02Running rpm_check_debugRunning Transaction TestFinished Transaction TestTransaction Test SucceededRunning Transaction Updating : cyrus-sasl-lib 1/6 Installing : cyrus-sasl 2/6 Installing : hesiod 3/6 Installing : procmail 4/6 Installing : sendmail 5/6 Cleanup : cyrus-sasl-lib 6/6
Installed: sendmail.x86_64 0:8.13.8-8.1.el5_7
Dependency Installed: cyrus-sasl.x86_64 0:2.1.22-7.el5_8.1 hesiod.x86_64 0:3.1.0-8 procmail.x86_64 0:3.22-17.1.el5.centos
Dependency Updated: cyrus-sasl-lib.x86_64 0:2.1.22-7.el5_8.1
Complete![root@test etc]# yum install m4Loaded plugins: downloadonly, fastestmirrorLoading mirror speeds from cached hostfile* base: mirror.bit.edu.cn* extras: mirror.bit.edu.cn* updates: mirror.bit.edu.cnExcluding Packages in global exclude listFinishedSetting up Install ProcessResolving Dependencies–> Running transaction check—> Package m4.x86_64 0:1.4.5-3.el5.1 set to be updated–> Finished Dependency Resolution
Dependencies Resolved
================================================================================Package Arch Version Repository Size================================================================================Installing:m4 x86_64 1.4.5-3.el5.1 base 171 k
Transaction Summary================================================================================Install 1 Package(s)Upgrade 0 Package(s)
Total download size: 171 kIs this ok [y/N]: yDownloading Packages:m4-1.4.5-3.el5.1.x86_64.rpm | 171 kB 00:00Running rpm_check_debugRunning Transaction TestFinished Transaction TestTransaction Test SucceededRunning Transaction Installing : m4 1/1
Installed: m4.x86_64 0:1.4.5-3.el5.1
Complete![root@test ]# rpm -q sendmail m4sendmail-8.13.8-8.1.el5_7m4-1.4.5-3.el5.1[root@canary-12-06 etc]# rpm -q sendmail-cfpackage sendmail-cf is not installed[root@canary-12-06 etc]# rpm -q sendmail-docpackage sendmail-doc is not installed[root@canary-12-06 etc]# yum install sendmail-cfLoaded plugins: downloadonly, fastestmirrorLoading mirror speeds from cached hostfile* base: mirror.bit.edu.cn* extras: mirror.bit.edu.cn* updates: mirror.bit.edu.cnExcluding Packages in global exclude listFinishedSetting up Install ProcessResolving Dependencies–> Running transaction check—> Package sendmail-cf.x86_64 0:8.13.8-8.1.el5_7 set to be updated–> Finished Dependency Resolution
Dependencies Resolved
================================================================================Package Arch Version Repository Size================================================================================Installing:sendmail-cf x86_64 8.13.8-8.1.el5_7 base 306 k
Transaction Summary================================================================================Install 1 Package(s)Upgrade 0 Package(s)
Total download size: 306 kIs this ok [y/N]: yDownloading Packages:sendmail-cf-8.13.8-8.1.el5_7.x86_64.rpm | 306 kB 00:00Running rpm_check_debugRunning Transaction TestFinished Transaction TestTransaction Test SucceededRunning Transaction Installing : sendmail-cf 1/1
Installed: sendmail-cf.x86_64 0:8.13.8-8.1.el5_7
Complete![root@test etc]# yum install sendmail-docLoaded plugins: downloadonly, fastestmirrorLoading mirror speeds from cached hostfile* base: mirror.bit.edu.cn* extras: mirror.bit.edu.cn* updates: mirror.bit.edu.cnExcluding Packages in global exclude listFinishedSetting up Install ProcessResolving Dependencies–> Running transaction check—> Package sendmail-doc.x86_64 0:8.13.8-8.1.el5_7 set to be updated–> Finished Dependency Resolution
Dependencies Resolved
================================================================================Package Arch Version Repository Size================================================================================Installing:sendmail-doc x86_64 8.13.8-8.1.el5_7 base 665 k
Transaction Summary================================================================================Install 1 Package(s)Upgrade 0 Package(s)
Total download size: 665 kIs this ok [y/N]: yDownloading Packages:sendmail-doc-8.13.8-8.1.el5_7.x86_64.rpm | 665 kB 00:01Running rpm_check_debugRunning Transaction TestFinished Transaction TestTransaction Test SucceededRunning Transaction Installing : sendmail-doc 1/1
Installed: sendmail-doc.x86_64 0:8.13.8-8.1.el5_7
Complete![root@zhangshibo etc]#
[root@test temp]# yum install dovecotLoaded plugins: downloadonly, fastestmirrorLoading mirror speeds from cached hostfile* base: mirror.bit.edu.cn* extras: mirror.bit.edu.cn* updates: mirror.bit.edu.cnExcluding Packages in global exclude listFinishedSetting up Install ProcessResolving Dependencies–> Running transaction check—> Package dovecot.x86_64 0:1.0.7-7.el5_7.1 set to be updated–> Processing Dependency: libpq.so.4()(64bit) for package: dovecot–> Running transaction check—> Package postgresql-libs.x86_64 0:8.1.23-6.el5_8 set to be updated–> Finished Dependency Resolution
Dependencies Resolved
================================================================================Package Arch Version Repository Size================================================================================Installing:dovecot x86_64 1.0.7-7.el5_7.1 base 1.7 MInstalling for dependencies:postgresql-libs x86_64 8.1.23-6.el5_8 updates 197 k
Transaction Summary================================================================================Install 2 Package(s)Upgrade 0 Package(s)
Total download size: 1.8 MIs this ok [y/N]: yDownloading Packages:(1/2): postgresql-libs-8.1.23-6.el5_8.x86_64.rpm | 197 kB 00:00(2/2): dovecot-1.0.7-7.el5_7.1.x86_64.rpm | 1.7 MB 00:02——————————————————————————–Total 749 kB/s | 1.8 MB 00:02Running rpm_check_debugRunning Transaction TestFinished Transaction TestTransaction Test SucceededRunning Transaction Installing : postgresql-libs 1/2 Installing : dovecot 2/2
Installed: dovecot.x86_64 0:1.0.7-7.el5_7.1
Dependency Installed: postgresql-libs.x86_64 0:8.1.23-6.el5_8
Complete![root@test temp]#
安装完需要的软件以后，启动服务：
service dovecot restart
然后配置
慢慢学会了长大。流转的时光，
