Re: What must one do to avoid Gmail's retarded non-spam filtering?

[Joe Sniderman <joseph.sniderman () thoroquel org>]

On 09/29/2010 12:05 AM, Erik L wrote:
> Google appears to have blacklisted our domain. From the edge MTA, I
> sent three messages, differing only in the From header: 1. valid
> email @klssys.com 2. valid email @caneris.com 3. abc123 () caneris com
>
> 1 not spam; 2 & 3 spam


Ok, so its the domain not the IP.

You're a DSL provider, right?  IP's assigned to customers have PTR's in
caneris.com, right?


[..snip..]

> ----- Original Message ----- From: "Erik L" <erik_list () caneris com> 
> To: "William Pitcock" <nenolod () systeminplace net> Cc:
> nanog () nanog org Sent: Tuesday, September 28, 2010 7:17:45 PM Subject:
> Re: What must one do to avoid Gmail's retarded non-spam filtering?
>
> Hi William,
>
> I do so for our entire IP space on a regular basis. The edge MTA I 
> mentioned in the reply to Bill shows up as "Neutral" there.


Ok, but there are a couple customer IP's that show up as "Poor" there,
with rDNS in caneris.com not in klssys.com.

One of those is on CBL (and XBL) and PSBL, and is spamming using your
domain:
http://psbl.surriel.com/evidence?ip=199.19.168.33&action=Check+evidence

Its not PBL listed even though its a dynamic IP it seems:
http://www.spamhaus.org/query/bl?ip=199.19.168.33

That would be an SPF pass as well, because of:
caneris.com.            3600    IN      TXT     "v=spf1 a mx ptr -all"

So, from the receiving end it could easily look like its one of
caneris.com's outbound servers..  But not one of klssys.com's servers.

Maybe this has something to do with the problem.

HTH,
Joe

-- 
Joe Sniderman