Changing hostname

[tster13]

For now it works weird, wiki documentation also does not match current version.

CWP also does not change hostname in CentOS itself (at least for me it is such), I mean https://support.rackspace.com/how-to/centos-hostname-change/.

Hence for outgoing email in headers you have old hostname used by amavisd-new in X-Virus-Scanned: amavisd-new and below.