This can be caused by upstream resolvers using DNSSEC whilst the client doesn't. I've just dealt with a user facing this issue.
The solution was to use DNSSEC with dig: dig +dnssec <host> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/327364 Title: DNS lookup fails if there are too many records records (e.g. smtp.googlemail.com) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/327364/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
