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. abc...@caneris.com
1 not spam; 2 & 3 spam Return-Path of all three was still another address @caneris.com and the two SPF passed headers were still there. The body & subject of all messages was simply "testing5". The recipient even clicked on "not spam" on #2 prior to #3 being sent. At least it explains why all the other standard stuff we all looked at didn't explain the issue. The next (and last) question is: does anyone have a clueful Google mail ops contact? Thanks again for all the help and sorry for the OT noise. Erik ----- Original Message ----- From: "Erik L" <erik_l...@caneris.com> To: "William Pitcock" <neno...@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. Thanks Erik ----- Original Message ----- From: "William Pitcock" <neno...@systeminplace.net> To: "Erik L" <erik_l...@caneris.com> Cc: nanog@nanog.org Sent: Tuesday, September 28, 2010 6:06:49 PM Subject: Re: What must one do to avoid Gmail's retarded non-spam filtering? Hi, Have you checked the IronPort reputation scores for your mailserver IPs? Google uses this data as part of it's spam detection method. William On Tue, 2010-09-28 at 16:15 -0400, Erik L wrote: > I realize that this is somewhat OT, but I'm sure that others on the > list encounter the same issues and that at least some folks might have > useful comments. > > An increasingly large number of our customers are using Gmail or > Google Apps and almost all of our OSS/BSS mail is getting spam > filtered by Google. Among others, these e-mails include invoices, > order confirmations, payment notifications, customer portal logins, > and tickets. Almost anything we send to customers on Google ends up in > their spam folder. This results in a lot of calls and makes much of > our automation pointless, never mind all the lost sales. > > The problem is compounded by those who use mail clients and do not log > in to the webmail at all, since they would never see the contents of > the Google spam folder. > > We have proper A+PTR records on the edge MTAs, proper SPF records for > the originating domain, proper Return-Path and other headers, and so > on. There isn't anything that I can think of other than the content > itself which would be abnormal, and obviously the content is > repetitive and can't be changed much. Is there something obvious which > we've missed? > > Aside from the following clearly impractical solutions, what can we > do? 1. Asking everyone (including those we don't even know yet) to > whitelist all of our addresses, to check their spam folders, and to > click on "this is not spam" > 2. Providing our own free e-mail service to everyone (including those > we don't even know yet) and putting up "don't use Google" ads on all > of our customer-facing systems > > At least this isn't Hotmail where mail is just silently deleted with > no NDR after it's accepted by their MTAs. > > The call volume has been going up instead of down lately and it's > gotten to the point where we're sending MTA log extracts to people to > prove to them that we really did e-mail them. > > Would greatly appreciate any advice. > > Erik >
