InterWorx only supports the packages supplied with InterWorx and NOT third party repos:
To find them use the command: rpm -qa | grep iworx
awstats-6.95-100.iworx.noarch
simscan-1.2-106.rhe6x.iworx.x86_64
interworx-horde-3.3.11-541.iworx.noarch
interworx-cli-2.0.0-1.iworx.x86_64
interworx-roundcube-0.8.7-568.iworx.noarch
apf-1.7.5-3.4.iworx.noarch
httpd-2.2.26-105.rhe6x.iworx.x86_64
daemontools-0.76-103.rhe6x.iworx.x86_64
qmailanalog-0.70-5.iworx.x86_64
maildrop-1.8.0-105.rhe6x.iworx.x86_64
mod_watch-4.3-103.rhe6x.iworx.p1.ru.x86_64
qmqtool-1.09-101.rhe6x.iworx.noarch
httpd-iworx-2.2.26-100.rhe6x.iworx.x86_64
suphp-iworx-0.7.1-108.rhe6x.iworx.x86_64
djbdns-1.05-117.rhe6x.iworx.x86_64
mysql-iworx-4.0.21-12.rhe6x.iworx.x86_64
qmail-1.03-451.rhe6x.iworx.jms.chkuser.esmtpa.ipv6.isoc.x86_64
php-iworx-5.3.28-2.rhe6x.iworx.x86_64
libdomainkeys-0.68-102.rhe6x.iworx.x86_64
qlogtools-3.1-3.iworx.x86_64
courier-imap-2.1.2-120.rhe6x.iworx.x86_64
jailkit-2.13-100.rhe6x.iworx.x86_64
suphp-0.7.1-114.iworx.x86_64
perl-Mail-DKIM-0.39-104.rhe6x.iworx.x86_64
sim-2.5-14.iworx.noarch
perl-Sys-Hostname-Long-1.4-103.rhe6x.iworx.x86_64
spamassassin-3.3.1-2017.rhe6x.iworx.x86_64
interworx-bin-2.0.3-2.iworx.x86_64
interworx-phpmyadmin-3.5.4-541.iworx.noarch
interworx-squirrelmail-1.4.22-541.iworx.noarch
interworx-5.0.15-591.iworx.noarch
httpd-tools-2.2.26-105.rhe6x.iworx.x86_64
httpd-devel-2.2.26-105.rhe6x.iworx.x86_64
webalizer-2.01_10-100.rhe6x.iworx.x86_64
analog-6.0-101.rhe6x.iworx.x86_64
perl-Mail-SPF-Query-1.999.1-103.rhe6x.iworx.x86_64
proftpd-1.3.4a-105.rhe6x.iworx.x86_64
interworx-smarty-2.6.19-541.iworx.noarch
qmail-pop3d-1.03-451.rhe6x.iworx.jms.chkuser.esmtpa.ipv6.isoc.x86_64
vpopmail-5.4.33-112.rhe6x.iworx.x86_64
clamav-0.98.1-100.rhe6x.iworx.x86_64
ucspi-tcp-0.88-205.rhe6x.iworx.x86_64
mod_ssl-2.2.26-105.rhe6x.iworx.x86_64
perl-Statistics-Distributions-1.02-3.rhe6x.iworx.x86_64
perl-NetAddr-IP-4.030-101.rhe6x.iworx.x86_64
