@uvhost are you sure it is actually installed? It's not perl-Unicode-IMAPUTF7, and I see you got an error when trying to install the RPM Martynas indicated. That domain, driesrpms.eu, is not working so that could be the problem with that error...
So, try install this:
YAML:
yum install https://dev.lexmedia.ro/perl-Encode-IMAPUTF7-1.05-1.el7.rf.noarch.rpm
