multi-domain - multiple SSL certificates

[Sruli Saurymper]

Hi All,

I have kolab 3.3 running on centos 7, all is running good however I have 
multiple domains and want a SSL certificate for each domain on single (I 
have only 1 IP), I read that on Apache it is possible using NSI (Server 
Name Indication, I havent yet looked into how it works but know of the 
concept.)
My Question is how can I get multiple SSL certs configured for kolab 
(cyrus-imap and postfix) does anyone have any experience with this or 
can anyone please point me in the right direction?

Thanks
Sruli