How to Remove Sendmail Service From CentOS 5.5

Sendmail is a program that runs on most servers. Sendmail provides mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP). However, it is not necessary to have this sendmail. For those who plan to install postfix as an alternative, the can just uninstall the sendamil service to avoid port conflict during installation. In this post i will show you the simple steps to remove sendmail service on CentOS 5.5.

[root@server ~]# yum remove sendmail
Loaded plugins: fastestmirror
Setting up Remove Process
Resolving Dependencies
--> Running transaction check
---> Package sendmail.i386 0:8.13.8-8.el5 set to be erased
--> Processing Dependency: smtpdaemon for package: fetchmail
--> Processing Dependency: smtpdaemon for package: mdadm
--> Processing Dependency: smtpdaemon for package: mutt
--> Processing Dependency: sendmail = 8.13.8-8.el5 for package: sendmail-cf
--> Running transaction check
---> Package fetchmail.i386 0:6.3.6-1.1.el5_3.1 set to be erased
---> Package mdadm.i386 0:2.6.9-3.el5 set to be erased
---> Package mutt.i386 5: set to be erased
---> Package sendmail-cf.i386 0:8.13.8-8.el5 set to be erased
--> Finished Dependency Resolution

Dependencies Resolved

 Package              Arch          Version                      Repository          Size
 sendmail             i386          8.13.8-8.el5                 installed          1.3 M
Removing for dependencies:
 fetchmail            i386          6.3.6-1.1.el5_3.1            installed          1.3 M
 mdadm                i386          2.6.9-3.el5                  installed          1.8 M
 mutt                 i386          5:          installed          2.9 M
 sendmail-cf          i386          8.13.8-8.el5                 installed          925 k

Transaction Summary
Remove        5 Package(s)
Reinstall     0 Package(s)
Downgrade     0 Package(s)

Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Erasing        : fetchmail                                                          1/5
  Erasing        : mdadm                                                              2/5
  Erasing        : sendmail                                                           3/5
warning: /var/log/mail/statistics saved as /var/log/mail/statistics.rpmsave
  Erasing        : sendmail-cf                                                        4/5
  Erasing        : mutt                                                               5/5

  sendmail.i386 0:8.13.8-8.el5

Dependency Removed:
  fetchmail.i386 0:6.3.6-1.1.el5_3.1            mdadm.i386 0:2.6.9-3.el5
  mutt.i386 5:                 sendmail-cf.i386 0:8.13.8-8.el5