Mail certificate management link?

Hi Guys,

Maybe you recognize this scenario:
You visit a site, then purchase or obtain a service or product, and never go to the site until expiry or problems.
Then you find a lot of things have changed, and you don’t know your way around the place anymore.

My Comodo mail certificate expired. I noticed that the Icons were gone from the mail creation screen.
Got myself a new certificate, but can’t locate the link that allows you to revoke your certificate and all that.

Anybody know where I can find that?
(don’t tell anyone about it…shhhh… but that’s where I hope to find a tick box with which I can set that comodo sends me an e-mail warning me about certificate expiry as well…shhh…)

Take care,