Our support site, http:///help.yammer.com is currently unavailable.
This means that no tickets will reach us, even if posted through firstname.lastname@example.org. Please hold off posting tickets for the time being.
Our engineers are aware of the issue, and are currently working to resolve this as soon as possible and will update this post with a work around as soon as it is available.
We apologize for any inconvenience this is causing, and we truly appreciate your patience.