[iyunv@www.iyunv.com ~]# yum search sendmail
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* addons: centos.mirror.cdnetworks.com
* base: centos.mirror.cdnetworks.com
* extras: centos.mirror.cdnetworks.com
* updates: centos.mirror.cdnetworks.com
======================================================== Matched: sendmail =========================================================
exim.x86_64 : The exim mail transfer agent
php-pear-Mail.noarch : Class that provides multiple interfaces for sending emails
sendmail.x86_64 : A widely used Mail Transport Agent (MTA).
sendmail-cf.x86_64 : The files needed to reconfigure Sendmail.
sendmail-devel.i386 : Extra development include files and development files.
sendmail-devel.x86_64 : Extra development include files and development files.
sendmail-doc.x86_64 : Documentation about the Sendmail Mail Transport Agent program.
spamassassin.x86_64 : Spam filter for email which can be invoked from mail delivery agents.
sysklogd.x86_64 : System logging and kernel message trapping daemons.