I get slashdot via email. I click on the links to read the articles (yip). Today, I click and get:
Error 503 Service Unavailable
Varnish cache server
Happens for all email links.
If I try to enter any of the email links 'manually', in my FF browser -- same thing.
I am able to enter the front page and read articles from there.
I don't know of any changes in my config and have been reading /. like this for years, ... so...