On 12/14/2010 8:31 PM, Philip Prindeville wrote: > On 12/14/10 3:35 PM, Cedric Knight wrote: >> On 14/12/10 14:28, Marc Perkel wrote: >>> Are there any DNSBLs out there based on email addresses? Since you >>> can't >>> use an @ in a DNS lookup >> Actually, you can use '@' in a lookup. You just can't use it in a >> hostname. >> >> Or you could convert the '@' to a '.' as is the format still used in SOA >> records. > > Not just SOA records, but the MB records were supposed to use this as > well. They just never caught on.
So how does this work for an address like first.l...@example.com? This would be converted to first.last.example.com, which is ambiguous and likely decoded to fi...@last.example.com. -- Bowie
