ContributionsMost RecentMost LikesSolutionsRe: Sending to my ntlworld email bounces with recipient's domain does not exist - [logged under F011775373] I've got the same problem. I've managed to get the following response via twitter/X: ---------- Thanks for the details. We've just received a report confirming that this is a known email fault, issue reference F011775373, impacting NTL email services. Our dedicated team is currently working on resolving this as soon as possible. At this time, we don't have an estimated fix time, however rest assured, we're actively working on a solution. --------- So at least someone seems to be aware now...