Could be the ARP Kernel cache, afaik it outputs these messages when its to small. You could try this: Link guess you understand german due...
In this case i am happy not to get mails from ispconfig. :D
Does it? Mine doesn't. :( Does it use the admin email set in "Administration -> preferences -> admin email"? Regards, Mike
When running nslookup -q=NS booksjamaica.com i get this: From your screenshots i would say theres a . (DOT) missing behind...
Separate names with a comma.
