First post - was directed here from stackoverflow!
The problem: Google marks seemingly correctly formatted emails from my apache/postfix server as spam. Sample email as follows;
(I have replaced my domain with mydomain.com.au and the IP with a pretend IP)
Delivered-To: [email protected]
Received: by 10.150.216.21 with SMTP id o21cs22383ybg;
Fri, 26 Feb 2010 23:11:55 -0800 (PST)
Received: by 10.231.152.75 with SMTP id f11mr1470919ibw.50.1267254715619;
Fri, 26 Feb 2010 23:11:55 -0800 (PST)
Return-Path: <[email protected]>
Received: from mydomain.com.au (mydomain.com.au [80.107.158.80])
by mx.google.com with ESMTP id 29si1651619iwn.31.2010.02.26.23.11.54;
Fri, 26 Feb 2010 23:11:55 -0800 (PST)
Received-SPF: pass (google.com: domain of [email protected] designates 80.107.158.80 as permitted sender) client-ip=80.107.158.80;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 80.107.158.80 as permitted sender) [email protected]
Received: by mydomain.com.au (Postfix, from userid 48)
id ACB735030340; Sat, 27 Feb 2010 18:11:53 +1100 (EST)
To: [email protected]
Subject: Quote for David Brent (00125512123)
From: [email protected]
Reply-To: [email protected]
X-Mailer: PHP/5.2.10
Message-Id: <[email protected]>
Date: Sat, 27 Feb 2010 18:11:53 +1100 (EST)
Name: David Brent
Mobile: 00125512123
Phone:
Email: [email protected]
Date: 2010-20-21
Time: 21:00
Location: Syd
Eventype: Musicians
Message: Yep, this should work!!!!
how did you hear about us: Newspaper
- I have tried sending it to non-google emails, and they arrive fine.
- I have tried posting to several different google accounts, all end up as spam.
- Mydomain.com.au uses Google Apps as email provider.
- I have added "v=spf1 a mx ~all" as TXT in my NS.
- I used http://remote.12dt.com/ to check reverse DNS and the IP seems to be resolving back to the domain name just fine.
- My IP is not blacklisted in spam-lists (as far as my checks can tell). I host at www.jumba.com.au - in Australia.
The headers seem fine, and the SPF look up seems to pass (?).. Any ideas?
Kind regards
mxtoolbox has a pretty comprehensive blacklist checker. I know you already checked but this might be useful to others who come across this post as well.
Your best bet - as mentioned by caelyx - is to implement DomainKeys and be done with all this nonsense. Yahoo and Gmail both green light dkim signed email till they have reason to do otherwise (users tagging it spam). If this is at all business related it's a pretty obvious choice ROI wise. An hour or so of configuration and testing equals much fewer issues with spam filters.
Google's got an FAQ at https://mail.google.com/support/bin/answer.py?answer=81126
It's probably triggering on a content rule (since SPF authentication seems to be working fine).
If you've got access to a couple of gmail accounts (yours, coworkers, etc), try sending some of that email to them and marking them as "Not Spam" within gMail; see if the filter learns.
Absolute worst case, try either (a) changing up the formatting, or (b) signing the message with DomainKeys/DKIM.
I had issues not being able to email a company that i always used to, and it happened because they migrated over to Google email servers and in the security checks they started using Forward Confirmed Reverse DNS Lookup.
Go to this ipadmin site and make sure your email server is configured properly
Nico
Is a pretty spammy looking message. First, you need to flag all the prior messages from that server as not spam. Then, you should make sure any messages you send are valid. For example:
"This message is to confirm that you have signed up for our service. ABC Corporation is looking forward to having you as a client"
Would probably not be caught.
Try this Email Server Test. if it does not flag anything, best thing is to contact Google postmaster.