AutoSSL for additional domains of host server

We have four IP's for our server linked to interfaces eth1, eth1:cp1, eth1:cp2 and eth1:cp3. Each of these IP's have reverse and forward DNS configured appropriately. For example: IP1 secure.domain.com IP2 mail.domain.com IP3 ns1.domain.com IP4 ns2.domain.com Two of the IP's have been assigned for nameserver as the domain name indicates and one IP is used for outgoing mails for some cpanel accounts. IP1 is the primary IP of the server and also the one linked to all the cpanel accounts. Question is, AutoSSL creates a certificate only for secure.domain.com. How can I ensure there are SSL certificates for the other 3 domain names linked the same server through different IP's. Especially mail.domain.com as I would like clients to be able to connect through secure POP/IMAP/SMTP using that domain as well. Thanks