There is a bug in the alias of sendmail, all alias is linked
to /var/tmp/usr/sbin/sendmail instead of /usr/sbin/.
A fix is to put on the .spec files of sendmail this :
for i in `find . -type 'l'|sed 's/^\.\///'`;do
ln -sf ../sbin/sendmail $i
This is fixed in a later sendmail package.