We're having problems loading images from the above address, so any campaign we send out is just not working. It's been like this for three days. We've had assurances via Twitter that this is being looked into, but we're starting to get a number of angry clients.
Can somebody please either contact me with a response other than "we're working on it". Based on this terrible service, we're close to going somewhere else.
EDIT: Also should point out that the main site, campaignmonitor.com is not loading a stylesheet.
We do apologize for this. The images and other associated files are hosted on a CDN and we've been working with that CDN provider to see what could be causing the loading issues you're seeing. Unfortunately, from what they can tell it seems to be related to some DNS outages with certain ISPs in the UK. There isn't much we can do to resolve it. We do wish we could give you a better answer or an estimate for when this will be resolved, but at this point all we can do is assist our provider in trying to work around this issue. Unfortunately, it may just be a matter of waiting for the DNS outage to resolve itself.