Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
/etc/pam.d/smtp
/usr/bin/mailq
/usr/bin/newaliases
/usr/bin/rmail
/usr/lib/sendmail
/usr/sbin/sendmail
/usr/share/man/man1/mailq.1.gz
/usr/share/man/man1/newaliases.1.gz
/usr/share/man/man5/aliases.5.gz
/usr/share/man/man8/sendmail.8.gz
MTA
config(postfix)
server(smtp)
smtpd
smtpdaemon
postfix
postfix(x86-64)

Requires :

setup => 2.5.36-1
libc.so.6()(64bit)
libssl.so.10()(64bit)
rtld(GNU_HASH)
libpcre.so.0()(64bit)
libresolv.so.2()(64bit)
/sbin/service
liblber-2.4.so.2()(64bit)
cyrus-sasl => 2.1.10
rpmlib(PayloadIsXz) <= 5.2-1
libldap-2.4.so.2()(64bit)
config(postfix) = 2:2.6.6-2.2.el6_1
libdl.so.2()(64bit)
libsasl2.so.2()(64bit)
/sbin/chkconfig
libresolv.so.2(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
/usr/sbin/alternatives
openldap => 2.0.27
mysql-libs
/usr/sbin/useradd
/bin/sh
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
openssl
libc.so.6(GLIBC_2.3.2)(64bit)
libnsl.so.1()(64bit)
libdb-4.7.so()(64bit)
/usr/sbin/groupadd
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
libmysqlclient.so.16()(64bit)
libc.so.6(GLIBC_2.7)(64bit)
rpmlib(PartialHardlinkSets) <= 4.0.4-1
libc.so.6(GLIBC_2.4)(64bit)
libmysqlclient.so.16(libmysqlclient_16)(64bit)
libm.so.6()(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.11)(64bit)
libnsl.so.1(GLIBC_2.2.5)(64bit)
/bin/bash
pcre
libz.so.1()(64bit)
libcrypto.so.10()(64bit)

Content of RPM :
/etc/pam.d/smtp.postfix
/etc/postfix
/etc/postfix/access
/etc/postfix/canonical
/etc/postfix/generic
/etc/postfix/header_checks
/etc/postfix/main.cf
/etc/postfix/master.cf
/etc/postfix/relocated
/etc/postfix/transport
/etc/postfix/virtual
/etc/rc.d/init.d/postfix
/etc/sasl2/smtpd.conf
/usr/bin/mailq.postfix
/usr/bin/newaliases.postfix
/usr/bin/rmail.postfix
/usr/lib/sendmail.postfix
/usr/libexec/postfix
/usr/libexec/postfix/anvil
/usr/libexec/postfix/bounce
/usr/libexec/postfix/cleanup
/usr/libexec/postfix/discard
/usr/libexec/postfix/error
/usr/libexec/postfix/flush
/usr/libexec/postfix/lmtp
/usr/libexec/postfix/local
/usr/libexec/postfix/main.cf
/usr/libexec/postfix/master
/usr/libexec/postfix/master.cf
/usr/libexec/postfix/nqmgr
There is 182 files more in these RPM.