[CentOS] masquerade from - postfix

[John R Pierce]

David Hlác(ik wrote:
> masquerade_domains = sx1.labs.polarion.com polarion.com
>
> Is it right that now sx1.labs.polarion.com should be masqueraded to
> polarion.com??
>
> Unfortunatelly, it does not works.
>   

according to the page linked by the previous writer, 
xxxx.xxxx.sx1.labs.polarion.com would be masqueraded to 
sx1.labs.polarion.com and anything.else.polarion.com would be 
masqueraded to polarion.com

so, for what you're asking, you'd just specify

masquerade_domains = polarion.com