Some subscribers of mine are having problems with links that do not seem to work. One person notes that the following link does not work for him:
The link is created by CM, and does seem to work fine for me. Can anyone help me figuring out what's causing this problem?
The link is fine for me too. What issue is the subscribe having specifically? I notice that you're using a custom domain, if there was any type of problem with your DNS it could cause errors with the link.
There were (and still are) no DNS-problems with the custom domain:
What specific error are they getting, though? I see your custom domain is fine and the link is working fine for me, but if on their end they're not seeing your DNS record correctly, it could cause problems. The possible cause all depends on the specific issue they're having with the link.