[c-nsp] Please fix reverse DNS for cisco-nsp

[Niccolò Belli]

I attached one of the e-mails I found in the spam folder with full headers.

I see:
 > Received: from puck.nether.net (unknown [IPv6:2001:418:3f4::5])

but:

laptop ~ # dig -x 2001:418:3f4::5 +short
puck.nether.net.
laptop ~ # dig AAAA puck.nether.net +short
2001:418:3f4::5

Anyway I don't have any problem anymore, I received no more than 10 
e-emails from the list in the spam folder because of the dns.

Niccolò
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: mail_with_headers.txt
URL: <https://puck.nether.net/pipermail/cisco-nsp/attachments/20120510/00de8442/attachment.txt>