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

[Lionel B. <lio...@bo...>]

Klaus Alexander Seistrup wrote:

>Hi SQLgrey Users,
>
>SPF for Gmail lists /^[mnrwz]proxy\.gmail\com$/ as outgoing MTAs for
>gmail.com, and I have listed those hosts in
>clients_fqdn_whitelist.local -- no problem.
>
>However, lately I have seen a bunch of hosts with IP addresses in one
>of Google's IP blocks that HELOs as nproxy.gmail.com.  Their reverse
>DNS reolves to nproxy.gmail.com, but the IP addresses are not listed
>for nproxy.gmail.com so Postfix skips the name entirely.
>
>My SQLgrey table now has 9 IP addresses (min 64.233.182.192, max
>64.233.182.207) associated with the same sender and recipient, and
>Gmail keeps trying delivering, but gets greylisted each time because
>it tries from another IP address each time, which causes a
>considerable delay.
>  
>

Annoying, to say the least.

>Perhaps Google's BOfHs has made a typo somewhere, because
>nproxy.gmail.com has the IP addresses 64.233.183.192-207, perhaps not.
>  
>

They probably made a typo.

> If the current hosts that HELO as nproxy.gmail.com all lie within the
>range 64.233.182.192-207 (i.e., 182 instead of 183), then eventually
>mail will get through but the delay is annoying.
>
>Do I have a better choice than putting e.g. 64.233.182.192-207 in my
>clients_ip_whitelist.local file?
>  
>

From the look of the whois requests I did, you could probably put

64.233.183 in clients_ip_whitelist.local (google registered 64.233.160.0/19 anyway)

Cheers,

Lionel