Re: [Sqlgrey-users] nproxy.gmail.com

[Klaus A. S. <kse...@gm...>]

Lionel Bouton wrote:

>>> 64.233.183 in clients_ip_whitelist.local (google registered 64.233.160.=
0/19
>>> anyway)
>>=20
>> Rather 64.233.182.  64.233.183 is covered by the
>> /^[mnrwz]proxy\.gmail\com$/ regexp, at least as of now, but I get
>> your point.
> =20
> Unless the DNS is answering differently to me (could be),
> nproxy.gmail.com does only cover 64.233.182.x addresses.
>=20
> The fqdn Postfix hands to SQLgrey is the result of a double query: first
> a PTR query to get the fqdn (both 62.233.182.... and 64.233.183....
> points to nproxy.gmail.com) then it queries the fqdn to check that the
> fqdn covers the original IP to be sure that it isn't a simple trick :
> this is were 64.233.183 isn't found and Postfix considers the address
> unknown.
>=20
> So /^[mnrwz]proxy\.gmail\com$/ can only match the systems on 62.233.182.x
>=20
> Am I mistaken?

No, not anymore. ;-)  When I sent my original email DNS listed nproxy
as 64.233.183.192-207, but hosts HELOing as nproxy came from address
in 62.233.182.x.  Now it seems DNS has been corrected so that nproxy
has the IP addresses 64.233.182.192-207.  Case solved, I guess.  It
must have been a typo in the Gmail zone file.

Cheers,

--=20
Klaus Alexander Seistrup
Magnetic Ink =B7 Copenhagen =B7 Denmark
http://magnetic-ink.dk/