Exchange 2007 hidden attachments [Microsoft Exchange]

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Next: Error "MSExchangeIS Mailbox Store" EventID: 1022

From: Terence Liu [MSFT] on 20 Mar 2008 04:40

From: John Fullbright on 20 Mar 2008 18:54

How does the BI application send? Is it logging onto Exchange? You may need
to add a MIME mapping.

"Mike Koch" <gsmike(a)news.postalias> wrote in message
news:3032F507-B211-425B-979E-130BB5803448(a)microsoft.com...
> That's the first thing I thought of when the problem was reported, but the
> only thing that changed was that the mailbox was moved from Exchange 2003
> to
> Exchange 2007. The Outlook client never changed, no policies or GPOs were
> changed, nothing that would have caused Outlook to suddenly start blocking
> PDF files. Plus, if Outlook were truly blocking the files, the users
> wouldn't
> be able to save them from the File menu.
>
> "John Fullbright" wrote:
>
>> I'd suspect the problem is outlook attachment security. The key is "They
>> can see the attachments in OWA, or if they
>> choose Save Attachments from the File menu in Outlook" which indicates
>> Level 2 attachment blocking. That the files are accessable in OWA,
>> sounds
>> to me that they are not being blocked at the server but rather at the
>> client.
>>
>> Generally, when you see problems with an extention that is not on the
>> level
>> 1 or level 2 lists, it's because of the way the attachment is mime
>> encoded.
>> Instead of application/pdf, it may be encoded application/octet-stream.
>>
>>
>> "Mike Koch" <gsmike(a)news.postalias> wrote in message
>> news:815C15A9-433E-4586-B11D-D96B61966ED8(a)microsoft.com...
>> > One of our BI apps (Cognos) sends emails with PDFs attached. After
>> > moving
>> > several users mailboxes from Exchange 2003 to Exchange 2007, these
>> > users
>> > now
>> > receive the messages but the attachments are not visible in the message
>> > when
>> > viewed from Outlook 2003. They can see the attachments in OWA, or if
>> > they
>> > choose Save Attachments from the File menu in Outlook.
>> >
>> > I found one reference to this problem on a blog post that said it would
>> > be
>> > fixed in Exchange 2007 SP1, but our servers are already running
>> > Exchange
>> > 2007
>> > SP1, so obviously that didn't fix the problem.
>> >
>> > Is this a known problem? When will it be fixed? Is there a workaround,
>> > other
>> > than the ones mentioned above?
>> >
>> > Thanks,
>> > Mike
>> >
>>
>>
>>

From: Mike Koch on 22 Mar 2008 02:57

Hi Terence,

I've got a working solution now. The Cognos mailer writes an "X-Mailer"
header with the "Cognos" name in it, so I modified the transport rule to look
for that string in the header, plus the PDF attachment check, so now it only
rewrites the Content-Type header for those messages, and leaves all the other
PDFs alone.

Thanks,
Mike

"Terence Liu [MSFT]" wrote:

> Hello Mike,
>
> Thank you for your update.
>
> You can try to apply the rollup 1 of Exchange 2007 sp1. It is not hurt for
> your Exchange. However, I am not sure it will fix this issue.
>
> Based on my research, this issue is cause by the difference in Content Type
> of the email sent from your Cognos.
>
> Good e-mail had Content Type: Content-Type: multipart/mixed
> Problematic e-mail has improper content type, like: Content-Type:
> multipart/related
>
> The Exchange 2007 not compatible with the Content Type. If the Content Type
> of the email does not properly, the attachment will not view in Outlook. I
> suggest you change the transport rule a little to bypass the internal PDF
> mails.
>
> When you create the transport rule, at the "Exceptions" page, do not simply
> click next, but select "except when the message is from users inside or
> outside the organization", then, click next.
>
> Then, test this issue.
>
> If the issue persists, you may need to connect the Cognos support. They may
> have option to change the Content Type to: multipart/mixed.
>
> I hope these steps will give you some help.
>
> Thanks and have a nice day!
>
> Best regards,
>
> Terence Liu(MSFT)
>
> Microsoft CSS Online Newsgroup Support
>
> Get Secure! - www.microsoft.com/security
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
> --------------------
> | Thread-Topic: Exchange 2007 hidden attachments
> | thread-index: AciJ8eYJ5cHmSiGMQ6GqoEtIN/Zvwg==
> | X-WBNR-Posting-Host: 207.46.192.207
> | From: =?Utf-8?B?TWlrZSBLb2No?= <gsmike(a)news.postalias>
> | References: <815C15A9-433E-4586-B11D-D96B61966ED8(a)microsoft.com>
> <8WvjcTXiIHA.360(a)TK2MSFTNGHUB02.phx.gbl>
> | Subject: RE: Exchange 2007 hidden attachments
> | Date: Wed, 19 Mar 2008 11:49:01 -0700
> | Lines: 126
> | Message-ID: <E5471C7C-5E97-44C2-B74F-D23AC10D85A7(a)microsoft.com>
> | MIME-Version: 1.0
> | Content-Type: text/plain;
> | charset="Utf-8"
> | Content-Transfer-Encoding: 7bit
> | X-Newsreader: Microsoft CDO for Windows 2000
> | Content-Class: urn:content-classes:message
> | Importance: normal
> | Priority: normal
> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2992
> | Newsgroups: microsoft.public.exchange.admin
> | Path: TK2MSFTNGHUB02.phx.gbl
> | Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.exchange.admin:65086
> | NNTP-Posting-Host: tk2msftibfm01.phx.gbl 10.40.244.149
> | X-Tomcat-NG: microsoft.public.exchange.admin
> |
> | Hi Terence,
> |
> | While the transport rule you described fixed this particular problem, it
> | also broke users' ability to send normal PDF attachments from Outlook. If
> one
> | user attached a PDF to a message and sent it to another user, the
> recipient
> | received a blank message - no PDF was attached. Because of this, I had to
> | disable the transport rule.
> |
> | To answer your other questions:
> | (1) Sending mail with PDF attachment from a normal Exchange mailbox via
> | Outlook works as expected.
> | (2) No, it seems to only affect certain Exchange 2007 mailboxes
> | (3) Unknown at this time
> | (4) Forwarding the message, even back to the same mailbox, causes the
> | attachment to become visible.
> |
> | Any chance that the SP1 hotfix rollup 1 package addresses this problem?
> |
> | Thanks,
> | Mike
> |
> |
> | "Terence Liu [MSFT]" wrote:
> |
> | > Hello Mike,
> | >
> | > Thank you for posting here.
> | >
> | > According to your description, I understand that you unable to view the
> PDF
> | > attachments in Outlook after you move mailbox from Exchange 2003 to
> | > Exchange 2007. If I have misunderstood the problem, please don't
> hesitate
> | > to let me know.
> | >
> | > Based on my research, I suggest we try the following steps to see if we
> can
> | > resolve this issue:
> | >
> | > - Open Exchange Management Console on Exchange 2007
> | > - Under the Organization Configuration selected the Hub transport.
> | > - On the Right pane under Transport rule tab.
> | > - Created a new Transport rule.
> | > - Selected the option "When any attachment file name contains text
> | > patterns" typed .pdf
> | > - Clicked Next under Actions Select "set header with value," click the
> | > highlighted "header" text, type Content-Type, click OK
> | > - Click the highlighted "value" text, type multipart/mixed, click OK,
> and
> | > then click next
> | > - On the "Exceptions" page, simply click next
> | > - Finally "Create Rule" page, click New, then click Finish
> | > - Restarted the Microsoft Exchange Transport service.
> | > - Now tested the mail with PDF Attachment.
> | >
> | > If we cannot resolve the issue after we perform the above steps, please
> | > help me collect some information for further investigation:
> | >
> | > 1. If you send mail with PDF attachment from a normal Exchange mailbox
> | > account, does the issue reoccur?
> | >
> | > 2. Does this issue happen on all mailbox accounts on Exchange 2007?
> | >
> | > 3. Does this issue happen when you view the email from Outlook 2007
> client?
> | >
> | > 4. Please forward the problematic email to an Exchange 2003 mailbox,
> does
> | > the issue still happen?
> | >
> | > I hope these steps will give you some help.
> | >
> | > Thanks and have a nice day!
> | >
> | > Best regards,
> | >
> | > Terence Liu(MSFT)
> | >
> | > Microsoft CSS Online Newsgroup Support
> | >
> | > Get Secure! - www.microsoft.com/security
> | >
> | > This posting is provided "AS IS" with no warranties, and confers no
> rights.
> | >
> | > --------------------
> | > | Thread-Topic: Exchange 2007 hidden attachments
> | > | thread-index: AciJRM+g2bGORHhBT7OAB/i7AzaCWQ==
> | > | X-WBNR-Posting-Host: 207.46.19.197
> | > | From: =?Utf-8?B?TWlrZSBLb2No?= <gsmike(a)news.postalias>
> | > | Subject: Exchange 2007 hidden attachments
> | > | Date: Tue, 18 Mar 2008 15:10:01 -0700
> | > | Lines: 16
> | > | Message-ID: <815C15A9-433E-4586-B11D-D96B61966ED8(a)microsoft.com>
> | > | MIME-Version: 1.0
> | > | Content-Type: text/plain;
> | > | charset="Utf-8"
> | > | Content-Transfer-Encoding: 7bit
> | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | Content-Class: urn:content-classes:message
> | > | Importance: normal
> | > | Priority: normal
> | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2992
> | > | Newsgroups: microsoft.public.exchange.admin
> | > | Path: TK2MSFTNGHUB02.phx.gbl
> | > | Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.exchange.admin:64974
> | > | NNTP-Posting-Host: tk2msftsbfm01.phx.gbl 10.40.244.148
> | > | X-Tomcat-NG: microsoft.public.exchange.admin
> | > |
> | > | One of our BI apps (Cognos) sends emails with PDFs attached. After
> moving
> | > | several users mailboxes from Exchange 2003 to Exchange 2007, these
> users
> | > now
> | > | receive the messages but the attachments are not visible in the
> message
> | > when
> | > | viewed from Outlook 2003. They can see the attachments in OWA, or if
> they
> | > | choose Save Attachments from the File menu in Outlook.
> | > |
> | > | I found one reference to this problem on a blog post that said it
> would
> | > be
> | > | fixed in Exchange 2007 SP1, but our servers are already running
> Exchange
> | > 2007
> | > | SP1, so obviously that didn't fix the problem.
> | > |
> | > | Is this a known problem? When will it be fixed? Is there a
> workaround,
> | > other
> | > | than the ones mentioned above?
> | > |
> | > | Thanks,
> | > | Mike
> | > |
> | > |
> | >
> | >
> |
>
>

From: Terence Liu [MSFT] on 23 Mar 2008 23:55

Hello Mike,

Thank you very much for sharing your resolution. I appreciate your time on
this issue.

I'm glad to hear that things are working correctly for you now. Please do
not hesitate to post in SBS newsgroup if you need any assistance in the
future. I look forward to working with you again.

Thank you and have a nice day,

Best regards,

Terence Liu(MSFT)

Microsoft CSS Online Newsgroup Support

Get Secure! - www.microsoft.com/security

This posting is provided "AS IS" with no warranties, and confers no rights.

--------------------
| Thread-Topic: Exchange 2007 hidden attachments
| thread-index: AciL6e23X3tAGfNmSZyiPWFuDw+4vA==
| X-WBNR-Posting-Host: 207.46.193.207
| From: =?Utf-8?B?TWlrZSBLb2No?= <gsmike(a)news.postalias>
| References: <815C15A9-433E-4586-B11D-D96B61966ED8(a)microsoft.com>
<8WvjcTXiIHA.360(a)TK2MSFTNGHUB02.phx.gbl>
<E5471C7C-5E97-44C2-B74F-D23AC10D85A7(a)microsoft.com>
<eTmCSYmiIHA.6844(a)TK2MSFTNGHUB02.phx.gbl>
| Subject: RE: Exchange 2007 hidden attachments
| Date: Fri, 21 Mar 2008 23:57:01 -0700
| Lines: 227
| Message-ID: <E12823B9-D4AA-4799-BFB1-96E6C64EFDD5(a)microsoft.com>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2992
| Newsgroups: microsoft.public.exchange.admin
| Path: TK2MSFTNGHUB02.phx.gbl
| Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.exchange.admin:65504
| NNTP-Posting-Host: tk2msftibfm01.phx.gbl 10.40.244.149
| X-Tomcat-NG: microsoft.public.exchange.admin
|
| Hi Terence,
|
| I've got a working solution now. The Cognos mailer writes an "X-Mailer"
| header with the "Cognos" name in it, so I modified the transport rule to
look
| for that string in the header, plus the PDF attachment check, so now it
only
| rewrites the Content-Type header for those messages, and leaves all the
other
| PDFs alone.
|
| Thanks,
| Mike
|
|
| "Terence Liu [MSFT]" wrote:
|
| > Hello Mike,
| >
| > Thank you for your update.
| >
| > You can try to apply the rollup 1 of Exchange 2007 sp1. It is not hurt
for
| > your Exchange. However, I am not sure it will fix this issue.
| >
| > Based on my research, this issue is cause by the difference in Content
Type
| > of the email sent from your Cognos.
| >
| > Good e-mail had Content Type: Content-Type: multipart/mixed
| > Problematic e-mail has improper content type, like: Content-Type:
| > multipart/related
| >
| > The Exchange 2007 not compatible with the Content Type. If the Content
Type
| > of the email does not properly, the attachment will not view in
Outlook. I
| > suggest you change the transport rule a little to bypass the internal
PDF
| > mails.
| >
| > When you create the transport rule, at the "Exceptions" page, do not
simply
| > click next, but select "except when the message is from users inside or
| > outside the organization", then, click next.
| >
| > Then, test this issue.
| >
| > If the issue persists, you may need to connect the Cognos support. They
may
| > have option to change the Content Type to: multipart/mixed.
| >
| > I hope these steps will give you some help.
| >
| > Thanks and have a nice day!
| >
| > Best regards,
| >
| > Terence Liu(MSFT)
| >
| > Microsoft CSS Online Newsgroup Support
| >
| > Get Secure! - www.microsoft.com/security
| >
| > This posting is provided "AS IS" with no warranties, and confers no
rights.
| >
| > --------------------
| > | Thread-Topic: Exchange 2007 hidden attachments
| > | thread-index: AciJ8eYJ5cHmSiGMQ6GqoEtIN/Zvwg==
| > | X-WBNR-Posting-Host: 207.46.192.207
| > | From: =?Utf-8?B?TWlrZSBLb2No?= <gsmike(a)news.postalias>
| > | References: <815C15A9-433E-4586-B11D-D96B61966ED8(a)microsoft.com>
| > <8WvjcTXiIHA.360(a)TK2MSFTNGHUB02.phx.gbl>
| > | Subject: RE: Exchange 2007 hidden attachments
| > | Date: Wed, 19 Mar 2008 11:49:01 -0700
| > | Lines: 126
| > | Message-ID: <E5471C7C-5E97-44C2-B74F-D23AC10D85A7(a)microsoft.com>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
| > | X-Newsreader: Microsoft CDO for Windows 2000
| > | Content-Class: urn:content-classes:message
| > | Importance: normal
| > | Priority: normal
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2992
| > | Newsgroups: microsoft.public.exchange.admin
| > | Path: TK2MSFTNGHUB02.phx.gbl
| > | Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.exchange.admin:65086
| > | NNTP-Posting-Host: tk2msftibfm01.phx.gbl 10.40.244.149
| > | X-Tomcat-NG: microsoft.public.exchange.admin
| > |
| > | Hi Terence,
| > |
| > | While the transport rule you described fixed this particular problem,
it
| > | also broke users' ability to send normal PDF attachments from
Outlook. If
| > one
| > | user attached a PDF to a message and sent it to another user, the
| > recipient
| > | received a blank message - no PDF was attached. Because of this, I
had to
| > | disable the transport rule.
| > |
| > | To answer your other questions:
| > | (1) Sending mail with PDF attachment from a normal Exchange mailbox
via
| > | Outlook works as expected.
| > | (2) No, it seems to only affect certain Exchange 2007 mailboxes
| > | (3) Unknown at this time
| > | (4) Forwarding the message, even back to the same mailbox, causes the
| > | attachment to become visible.
| > |
| > | Any chance that the SP1 hotfix rollup 1 package addresses this
problem?
| > |
| > | Thanks,
| > | Mike
| > |
| > |
| > | "Terence Liu [MSFT]" wrote:
| > |
| > | > Hello Mike,
| > | >
| > | > Thank you for posting here.
| > | >
| > | > According to your description, I understand that you unable to view
the
| > PDF
| > | > attachments in Outlook after you move mailbox from Exchange 2003 to
| > | > Exchange 2007. If I have misunderstood the problem, please don't
| > hesitate
| > | > to let me know.
| > | >
| > | > Based on my research, I suggest we try the following steps to see
if we
| > can
| > | > resolve this issue:
| > | >
| > | > - Open Exchange Management Console on Exchange 2007
| > | > - Under the Organization Configuration selected the Hub transport.
| > | > - On the Right pane under Transport rule tab.
| > | > - Created a new Transport rule.
| > | > - Selected the option "When any attachment file name contains text
| > | > patterns" typed .pdf
| > | > - Clicked Next under Actions Select "set header with value," click
the
| > | > highlighted "header" text, type Content-Type, click OK
| > | > - Click the highlighted "value" text, type multipart/mixed, click
OK,
| > and
| > | > then click next
| > | > - On the "Exceptions" page, simply click next
| > | > - Finally "Create Rule" page, click New, then click Finish
| > | > - Restarted the Microsoft Exchange Transport service.
| > | > - Now tested the mail with PDF Attachment.
| > | >
| > | > If we cannot resolve the issue after we perform the above steps,
please
| > | > help me collect some information for further investigation:
| > | >
| > | > 1. If you send mail with PDF attachment from a normal Exchange
mailbox
| > | > account, does the issue reoccur?
| > | >
| > | > 2. Does this issue happen on all mailbox accounts on Exchange 2007?
| > | >
| > | > 3. Does this issue happen when you view the email from Outlook 2007
| > client?
| > | >
| > | > 4. Please forward the problematic email to an Exchange 2003
mailbox,
| > does
| > | > the issue still happen?
| > | >
| > | > I hope these steps will give you some help.
| > | >
| > | > Thanks and have a nice day!
| > | >
| > | > Best regards,
| > | >
| > | > Terence Liu(MSFT)
| > | >
| > | > Microsoft CSS Online Newsgroup Support
| > | >
| > | > Get Secure! - www.microsoft.com/security
| > | >
| > | > This posting is provided "AS IS" with no warranties, and confers no
| > rights.
| > | >
| > | > --------------------
| > | > | Thread-Topic: Exchange 2007 hidden attachments
| > | > | thread-index: AciJRM+g2bGORHhBT7OAB/i7AzaCWQ==
| > | > | X-WBNR-Posting-Host: 207.46.19.197
| > | > | From: =?Utf-8?B?TWlrZSBLb2No?= <gsmike(a)news.postalias>
| > | > | Subject: Exchange 2007 hidden attachments
| > | > | Date: Tue, 18 Mar 2008 15:10:01 -0700
| > | > | Lines: 16
| > | > | Message-ID: <815C15A9-433E-4586-B11D-D96B61966ED8(a)microsoft.com>
| > | > | MIME-Version: 1.0
| > | > | Content-Type: text/plain;
| > | > | charset="Utf-8"
| > | > | Content-Transfer-Encoding: 7bit
| > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | Content-Class: urn:content-classes:message
| > | > | Importance: normal
| > | > | Priority: normal
| > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2992
| > | > | Newsgroups: microsoft.public.exchange.admin
| > | > | Path: TK2MSFTNGHUB02.phx.gbl
| > | > | Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.exchange.admin:64974
| > | > | NNTP-Posting-Host: tk2msftsbfm01.phx.gbl 10.40.244.148
| > | > | X-Tomcat-NG: microsoft.public.exchange.admin
| > | > |
| > | > | One of our BI apps (Cognos) sends emails with PDFs attached.
After
| > moving
| > | > | several users mailboxes from Exchange 2003 to Exchange 2007,
these
| > users
| > | > now
| > | > | receive the messages but the attachments are not visible in the
| > message
| > | > when
| > | > | viewed from Outlook 2003. They can see the attachments in OWA, or
if
| > they
| > | > | choose Save Attachments from the File menu in Outlook.
| > | > |
| > | > | I found one reference to this problem on a blog post that said it
| > would
| > | > be
| > | > | fixed in Exchange 2007 SP1, but our servers are already running
| > Exchange
| > | > 2007
| > | > | SP1, so obviously that didn't fix the problem.
| > | > |
| > | > | Is this a known problem? When will it be fixed? Is there a
| > workaround,
| > | > other
| > | > | than the ones mentioned above?
| > | > |
| > | > | Thanks,
| > | > | Mike
| > | > |
| > | > |
| > | >
| > | >
| > |
| >
| >
|

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