Upgrade errors for Kolab Centos 7

Doing a yum update for Kolab on Centos 7 and getting the following error:

--> Finished Dependency Resolution
Error: Package: kolab-mta-16.0.1-49.1.el7.kolab_16.x86_64 (Kolab_16)
           Requires: postfix-ldap
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

There doesn't seem to be a postfix-ldap package. Anyone else seeing this?

Thanks
-- 
Regards
Scott Newton