Xcp-ng: Provision of Opensuse VM Mailserver / Postfix MTA and CyrusIMAP + Smarthost Sending + Roundcube Webmail-Client

Our client would need the most up to date OpenSuse VM acting as a Mailserver. The VM fetched mails via fetchmail via current TLS/SSL POP3 protocols (current SSL setup on machines is needed) and send emails via TLS/SSL protocols. This needs to be configured on the machine with one example user. Our client wants to edit the users themselves. A small howto is needed as well how to add users and change SMTP settings is needed. The bidder must develop the VM on its on XCP-NG instance. The deliverable is an OVA/OVF export from Xencenter.