Cheetaweb has released an unofficial Sendmail patch for Red Hat Linux 7.2:

Download and install the following RPM's with rpm -Uvh

sendmail-8.11.6-24.72.i386.rpm
sendmail-cf-8.11.6-24.72.i386.rpm
sendmail-devel-8.11.6-24.72.i386.rpm
sendmail-doc-8.11.6-24.72.i386.rpm

MD5 Checksums:

f94ea1591d6a6d129f78feaeae912ff0 sendmail-8.11.6-24.72.i386.rpm
02d64303522d2462bc10c273eb8be06b sendmail-cf-8.11.6-24.72.i386.rpm
6ecd6c126e8c7f2521dfe85d81912848 sendmail-devel-8.11.6-24.72.i386.rpm
c6e93505c859a6672f3119ef2ea171a5 sendmail-doc-8.11.6-24.72.i386.rpm