We are responsible for providing, maintaining, and supporting the IT infrastructure that supports the Privy Council Office, which does include their e-mail system. So we are the technical authorities with respect to their e-mail system.
I will ask my colleague Benoît Long if he has any comments regarding the architecture of that system. I believe it's a standard way of providing e-mails, but I will ask Benoît, if you will allow, to comment on the architecture aspect of it.