[qmail] Greylisting problems with apostrophe (HowTo by meshier.com)

[ClausVB]

I installed Greylisting today successfully. Thanks to Brent Meshier and his HowTo: Adding Greylisting support to qmail on Plesk 8

Plesk: 8.0
SuSE: 10.1
Kernel: 2.6.13-15.11-default (installed by strato.de)

I posted some solutions on errors, too, but I have one major problem:

Greylisting works fine, but somehow all mail addresses with apostrophe like:
- doorsinstruction'[email protected]
- doggerel'[email protected]
- Juliette'[email protected]
are ignored and delivered instantly to my GMAIL account, which marks them as spam.

MySQL shows every address and every message is greylisted now, exept senders with apostrophe (see above).

Is this a bug or a feature? Is it just my problem or is anybody else able to reproduce the problem?

Best regards,
Claus

---

Typical header:

Delivered-To: **********@googlemail.com
Received: by 10.65.122.10 with SMTP id z10cs464877qbm;
        Thu, 28 Dec 2006 06:39:40 -0800 (PST)
Received: by 10.66.242.20 with SMTP id p20mr19904572ugh.1167316779791;
        Thu, 28 Dec 2006 06:39:39 -0800 (PST)
Return-Path: <[email protected]>
Received: from h7527.serverkompetenz.net (mydomain.com [81.169.184.221])
        by mx.google.com with ESMTP id 54si24617079ugp.2006.12.28.06.39.38;
        Thu, 28 Dec 2006 06:39:39 -0800 (PST)
Received-SPF: softfail (google.com: domain of transitioning doorsinstruction'[email protected] does not designate 81.169.184.221 as permitted sender)
Received: (qmail 2696 invoked by uid 110); 28 Dec 2006 15:38:22 +0100
Delivered-To: [email][email protected][/email]
Received: (qmail 2692 invoked by uid 2020); 28 Dec 2006 15:38:22 +0100
Received: from 63-207-177-12.ded.pacbell.net (HELO computer) (63.207.177.12)
  by mydomain.com with SMTP; 28 Dec 2006 15:38:21 +0100
Return-Path: <doorsinstruction'[email protected]>
Received: from 64.18.4.14 (HELO acceris.com.mx4.mxtoolbox.com)
     by clausvb.de with esmtp (,6U2K7O-,C *7R:4)
     id '>+A3G-4E/2>T-K7
     for [email][email protected][/email]; Thu, 28 Dec 2006 14:39:37 +0480
From: "Sofia Houston" <doorsinstruction'[email protected]>
To: <[email protected]>
Subject: Sofia Present
Date: Thu, 28 Dec 2006 14:39:37 +0480
Message-ID: <01c72a8e$002c14c0$6c822ecf@doorsinstruction's>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
X-Mailer: Microsoft Office Outlook, Build 11.0.5510
X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400
Thread-Index: Aca6Q;T/+K18OIB'CEH8T6:);TU/.)==