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UCC SSL Certificate understanding

I have purchased UCC SSL for 5 domains, I want to install these of my two mail servers( &, So how can i generate certificate. 


Generate certificate for both separately, or generate certificate for and then add 2 sans and





Getting Started

I ran into this very same issue yesterday. I have 2 domains. In, I made my primary domain the "owner" of the cert under "Change the site your certificate protects". It could be for you. Then added my other domain as a san ,so as a san.


The tricky portion for me was generating the right CSR. I was creating certs for my website under apache, so my process might be different from yours. However I found very useful.


EDIT: I wanted to specify that I used only one certificate for all domains. It makes things a LOT easier to manage.