Email being rejected by Exchange 2007 Antispam content filtering when sent from a Blackberry

A few days ago I started using Exchange 2007 built in Anti Spam - Content Filtering and since have not been able to receive emails sent from Blackberry handhelds. When I disable the Content Filtering the Hub Transport Exchange passes the email from Blackberry handhelds through.

Action Taken: Then I stared to add in the domains in the custom words or phrases that will not be blocked; this works but is not perfect.

Question: I there any way to allow all email sent from a Blackberry handheld, for example when a user send from an AOL, Yahoo, MSN or Gmail account from the handheld to bypass the Content filter in EX2K. - see below errors.

Thanks
John


One From AOL account through A Balckberry Handheld:

From: "Mail Delivery System" <MAILER-DAEMON@smtp13.bis.na.blackberry.com>
Date: 14 Apr 2010 18:57:38
To: <SRS0=H6LN48=LZ=aol.com=Redacted@srs.bis.na.blackberry.com>
Subject: Delivery Status Notification (Failure)

The following message to <Redacted@Redacted.com> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'5.7.1 Message rejected as spam by Content Filtering3




From Yahoo

Hi. This is the qmail-send program at yahoo.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<Redacted@Redacted.com>:
xx.xxx.xxx.xxx failed after I sent the message.
Remote host said: 550 5.7.1 Message rejected as spam by Content Filtering.

--- Below this line is a copy of the message.

Return-Path: <johnnymags@yahoo.com>
Received: (qmail 28214 invoked from network); 14 Apr 2010 23:21:05 -0000
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=yahoo.com;
  h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:X-rim-org-msg-ref-id:Message-ID:Reply-To:X-Priority:Sensitivity:Importance:Subject:To:From:Date:Content-Type:MIME-Version;
  b=kSTsdnjEcip9Ml3/XsDnyYse5qHtajo7zdMj+Zz5NmUaUkdUGRgEsKTr1xJCsD4VxWLAJXCnUYatdHH2FpEwyYKjy7eC3ozPtPtfMiuoX4gyyOzMHe5ZjxnKuL3BXa7QGgVwNJWXeBtsSIDwxMds7mh/UTZUAp7eP8dHYKDprF8=  ;
Received: from bda-67-223-76-180.bise.na.blackberry.com (johnnymags@67.223.76.180 with xymcookie)
        by smtp124-mob.biz.mail.mud.yahoo.com with SMTP; 14 Apr 2010 16:21:05 -0700 PDT
X-Yahoo-SMTP: xEtXq2iswBDpNvY7Fqc0QOIuKNmEWdc-
X-YMail-OSG: usutI_oVM1mCLVdzAHRuxEbL9hwHaLMc3Yem9YfzzvRqhF1Ts_9.8P5h9lDfD64LNK6_JUIgYUvB40IqockBjN7ms14foaFHyEoktCXYeYkifYnuoTR5FR_bYZ38MONS5KTVT8l.g9Nj8uWlYjntuA1GnVujsM5Jrsz8Hu62G0qkbLe1Q_6iDVIkfMqAD9K7ccyYdGFKB1eGXOxJ1LMmhRMbQLt59Fh7YV4IFZniaNW6U.qrHf30Aw--
X-Yahoo-Newman-Property: ymail-3
X-rim-org-msg-ref-id:2141436806
Message-ID:<2141436806-1271287264-cardhu_decombobulator_blackberry.rim.net-1856933135-@bda897.bisx.prod.on.blackberry>
Reply-To: johnnymags@yahoo.com
X-Priority: Normal
Sensitivity: Normal
Importance: Normal
Subject: Hi
To: "John Mapleton" <Redacted@Redacted.com>
From: johnnymags@yahoo.com
Date: Wed, 14 Apr 2010 23:22:10 +0000
Content-Type: text/plain
MIME-Version: 1.0

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