Email getting corrupted

[marjo]

Hi Guys,

At first I thought this was a Blackberry related mail issue, but it seems that its not the case anymore.

I think i have narrowed the issue being a base64 issue.

Mails to us: Client mail server -> Exim (with ClamSMTP and SpamAssassin) -> Exchange 2010

I have been on the [email protected] mailing list.

Old headers:
MIME-Version: 1.0
From: <[email protected]>
To: <xxx@xxx>
X-Priority: 1
Priority: urgent
Importance: high
Date: Mon, 5 Mar 2012 11:15:18 +0200
Subject: =?us-ascii?Q?IS Metro-E, Planned IS change, Gauteng Ring-1, Tue 20 Mar 12 @
00h01 - 00h30?=
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Message-ID: <[email protected]>
X-OriginalArrivalTime: 05 Mar 2012 09:15:18.0718 (UTC) FILETIME=[7BEC65E0:01CCFAB0]
X-Virus-Scanned: ClamAV using ClamSMTP
X-Virus-Scan: ClamAV 0.97.3/14583 on jupiter.xxx
X-ACL-Warn:
X-ACL-Warn: condition = true
X-Exim-Version: 4.77 (build at 27-Feb-2012 13:57:29)
X-Date: 2012-03-05 11:17:18
X-Connected-IP: 196.35.45.229:62823
Return-Path: [email protected]

The headers now:
MIME-Version: 1.0
From: <[email protected]>
To: <xxx@xxx>
X-Priority: 1
Priority: urgent
Importance: high
Date: Wed, 7 Mar 2012 16:11:52 +0200
Subject: [IS Latent Alert Wed Mar 07 2012 15h57 12:49-15:01] Access and MPLS VPN
Backbone Service, Melrose Arch
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Message-ID: <[email protected]>
X-Virus-Scanned: ClamAV using ClamSMTP
X-Virus-Scan: ClamAV 0.97.3/14603 on jupiter.xxx
X-ACL-Warn:
X-ACL-Warn: condition = true
X-Exim-Version: 4.77 (build at 27-Feb-2012 13:57:29)
X-Date: 2012-03-07 16:13:03
X-Connected-IP: 196.35.45.229:60744
Return-Path: [email protected]

Anyone that can help?