eMail spam filter and forums

[#1]

Hi
Of late I have found it impossible to register on several online forum sites because no emails get through the default spam blocker.
I always use new aliases for these and make sure I wait 30 minutes or so after setting up - I can't whitelist the senders address as I don't know it - the adress isn't always from the same domain as the site.
Is this just me?  If so I'll raise a ticket - or have others noticed this.
One example http://www.banditforum.co.uk/forum - registered yesterday - no email - registered again today with my gmail account and got instant notification I had registered.
Cheers
Eserim

[#2]

I had this trouble a while back and this was the result of the investigation
http://community.plus.net/forum/index.php/topic,73580.msg583921/topicseen.html#new

[#3]

Was that when the spam filter was Ironport or Postini -I've switched my "Discard Obvious Spam" off for now and may try again - I also haven't had Martin Lewis's Money Saving Expert newsletter for months now - despite White Listing his domain - does White Listing actually work?

[#4]

Quote

You're right that the email doesn't get past the IronPorts.

[#5]

Ah - so now we are on Postini a similar issue applies. 
For info - the headers of the one that got to gmail

Quote

From - Sat Apr 03 07:35:29 2010 X-Account-Key: account2 X-UIDL: GmailId127c26165f06bf62 X-Mozilla-Status: 0001 X-Mozilla-Status2: 00000000 X-Mozilla-Keys:                                                                                Delivered-To: zzzzzzzzzzzz@googlemail.com Received: by 10.204.62.13 with SMTP id v13cs60742bkh;         Fri, 2 Apr 2010 23:35:15 -0700 (PDT) Received: by 10.204.32.77 with SMTP id b13mr3977277bkd.113.1270276515130;         Fri, 02 Apr 2010 23:35:15 -0700 (PDT) Return-Path: <noreply@banditforum.co.uk> Received: from vps2.cheekylemon.co.uk (vps2.cheekylemon.co.uk [85.233.167.64])         by mx.google.com with ESMTP id s18si28414668bkx.19.2010.04.02.23.35.14;         Fri, 02 Apr 2010 23:35:15 -0700 (PDT) Received-SPF: neutral (google.com: 85.233.167.64 is neither permitted nor denied by best guess record for domain of noreply@banditforum.co.uk) client-ip=85.233.167.64; Authentication-Results: mx.google.com; spf=neutral (google.com: 85.233.167.64 is neither permitted nor denied by best guess record for domain of noreply@banditforum.co.uk) smtp.mail=noreply@banditforum.co.uk Message-Id: <4bb6e1a3.d2a1cc0a.0fa9.2568SMTPIN_ADDED@mx.google.com> Received: (qmail 21885 invoked from network); 3 Apr 2010 07:35:14 +0100 Received: from vps2.cheekylemon.co.uk (HELO mail.banditforum.co.uk) (85.233.167.64)   by vps2.cheekylemon.co.uk with SMTP; 3 Apr 2010 07:35:14 +0100 Subject: Welcome to The Suzuki Bandit forum To: <achrismarsden@googlemail.com> Mime-Version: 1.0 From: "The Suzuki Bandit forum" <noreply@banditforum.co.uk> Return-Path: noreply@banditforum.co.uk Date: Sat, 03 Apr 2010 06:35:14 -0000 X-Mailer: SMF Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="SMF-5cf652136a6629394c3530e40b87644e" Content-Transfer-Encoding: 7bit

I've checked with http://www.blacklistalert.org/ the two domains mentioned in the headers - both are OK.
Cheers
Eserim

[#6]

I take it (I am not an expert) that this suggests badly configures
Authentication-Results: mx.google.com; spf=neutral (google.com: 85.233.167.64 is neither permitted nor denied by best guess record for domain of noreply@banditforum.co.uk) smtp.mail=noreply@banditforum.co.uk

[#7]

Looks odd - sorry I got confused,I thought we went from Ironport to postini - but it looks like I got that wrong

[#8]

I think I need to raise a ticket here as it is very strange
On one forum when I changed it to a relatively new alias emails fail  - even with non discarding of obvious spam - but using an older alias, going to the same box it works.
Further test show that new aliases simply DON'T WORK AT ALL!!!  ticket raised
Strange

[#9]

Have you checked you have 'catch-all' switched on?  If not, have you set up new aliases individually using Manage My Mail in the Members Centre?  Surprising how many people forget this....
Best wishes
Chris