I have been using CM for awhile now, and use the same format every time. But yesterday and today when I try to set up a campaign, I get a 404 in the preview email. The HTML shows up just fine, but when I click on the campaign, I get a 404. Any suggestions? I've already tried re-splicing the eblast in photoshop and re-adding the links. It still didn't work.
It looks like we've replied via support as well. The issue is with your custom domain not working. As soon as that is correct in your DNS it should all be fine.