Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Attachment Corruption

Posted on 2007-07-31
15
Medium Priority
?
569 Views
Last Modified: 2013-11-30
Exchange 2k3, sp2 on windows server 2k3 sp2.
We had an attachment corruption problem with exchange that we thought was cleared up after an exchange hotfix, however, we are still having problems.  The corruption only happens when sending out of our domain.
Corruptions:  Most powerpoints, pdf's (this was fixed with the hotfix), some word, some excel, and now has corrupted a .wma file!
We applied a hotfix that seemed to help, we have changed routing groups, we have installed a new smtp virtual server.  We have also changed some settings on the NIC card, but that did not change anything.
Two servers on site, one of them sends corrupted attachments the other does not.
This all started after moving exchange to a new server.  Bad installation?  We had several other issues that required attention after the move also...
Microsoft has been unable to resolve so far.
0
Comment
Question by:globalwm
  • 9
  • 5
15 Comments
 
LVL 32

Assisted Solution

by:r-k
r-k earned 2000 total points
ID: 19604949
This is often caused by add-on's like Anti-virus or anti-spam filters. Do you have anything like that in use?
0
 
LVL 1

Author Comment

by:globalwm
ID: 19604963
We have been down every road I could imagine other than a reinstall.  Antivirus is uninstalled, firewall is not a factor, spam filter does not scan outgoing email.
0
 
LVL 32

Expert Comment

by:r-k
ID: 19605081
"..spam filter does not scan outgoing email."

As long as the spam filter touches the mail in any way it can cause problems, even if it is just changing the mail header in the most trivial way.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 1

Author Comment

by:globalwm
ID: 19605172
Not an issue.  It only scans incoming email.  Our problem ONLY happens when sending the attachments outside of our domain, and email going out does not get scanned.  
0
 
LVL 104

Expert Comment

by:Sembee
ID: 19607745
Where is the antispam filter? Is it installed on the Exchange server or a separate box?
Whether or not you have configured it to scan just inbound traffic, if email goes through the same physical machine it could still cause a problem. All that is happening when you configure a filter to work in one direction is that the email is left alone - the application still does its thing and can still cause a problem.

Simon.
0
 
LVL 1

Author Comment

by:globalwm
ID: 19609517
It is a separate box.
0
 
LVL 1

Author Comment

by:globalwm
ID: 19610071
0
 
LVL 1

Author Comment

by:globalwm
ID: 19611834
Spent all day on the phone with Microsoft again.  They concluded it is not exchange.  Looks like it may be our ISP.  We are going to look at getting a new ISP and see what happens.
0
 
LVL 1

Author Comment

by:globalwm
ID: 19641130
MS has resorted to reinstalling exchange and IIS, we will be doing that tomorrow.  I am certain this will fix our issues.
0
 
LVL 32

Expert Comment

by:r-k
ID: 19641158
Sure hope so...
0
 
LVL 1

Author Comment

by:globalwm
ID: 19645203
Totally reinstalled IIS and exchange + sp2 - did not fix the attachment corruption problems.  So, as MS has been saying from the very start (and you exchange experts) - it is NOT exchange.  We will most likely try a new ISP first, then maybe look at the firewall.
0
 
LVL 32

Expert Comment

by:r-k
ID: 19646012
A reasonable thing. More and more ISP's are messing with outgoing mail these days in an attempt to reduce spam, but re-reading your original message I notice that one of your servers does not have this problem. Is that one using a different ISP?
0
 
LVL 1

Author Comment

by:globalwm
ID: 19646766
Yes, it has its own outbound internet feed.
0
 
LVL 1

Accepted Solution

by:
globalwm earned 0 total points
ID: 19809424
It was our firewall ): - sorry for the trouble, you guys suspected that from the start.
0
 
LVL 32

Expert Comment

by:r-k
ID: 19809779
Thanks for the update. Very glad you got it solved.
0

Featured Post

Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Mailbox Corruption is a nightmare every Exchange DBA wishes he never has. Recovering from it can be super-hectic if not entirely futile. And though techniques like the New-MailboxRepairRequest cmdlet have been designed to help with fixing minor corr…
Among the most obnoxious of Exchange errors is error 1216 – Attached Database Mismatch error of the Jet Database Engine. When faced with this error, users may have to suffer from mailbox inaccessibility and in worst situations, permanent data loss.
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an anti-spam), the admin…
Suggested Courses
Course of the Month15 days, 1 hour left to enroll

578 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question