[Sqlgrey-users] nproxy.gmail.com

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

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.

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

Has anyone else on the list experienced this?

Cheers,

--=20
Klaus Alexander Seistrup
Copenhagen =B7 Denmark
http://seistrup.dk/