Block specific type file in attachment, Exchange Server 2010


  • Dear Friends....

    I want to disable attachment of drawing files like .cdr, .dwg, .psd and so on... I have read some articles but i am not able to perform it properly. Is there something that i am missing in configuration ?

    I am using Exchange Server 2010 Std. Edition on Windows Server 2008 Std. Edition. I have tried transport rule it works perfectly for microsoft products and other default file types.

    Please tell me what to do to block file as attachment of third party or non microsoft products?



    Monday, August 08, 2011 11:39 AM


All replies

  • Hi
    Enable Anti-Spam Functionality on a Hub Transport Server
    Enable-TransportAgent -Identity "Attachment Filter agent"
        Add-AttachmentFilterEntry -Name *.psd -Type FileName
      2. You can read this blog and set transport rule :”when an attachment is unsupported”

    • Marked as answer by Terence Yu Friday, August 19, 2011 7:30 AM
    Tuesday, August 09, 2011 7:52 AM
  • Attachment filter agent is only available on Exchange Edge servers. Do you have an Exchange Edge.

    Otherwise file filterering can often be done in AV for Exchange.



    lasse at humandata dot se, http://anewmessagehasarrived.blogspot.com
    Thursday, August 11, 2011 8:48 PM
  • Hi Lasse,

    Thanks for ur response. I dont have Edge Server. I m sorry to say bt im nt much aware of Edge Server. can you guide me for Edge server or AV for exchange more for attachment filtering ?

    As per my knowledge it controls mail flow which is coming from internet, let me also tell you that i want to control mails which are sent from inside organization, not coming from outside of organization. I want to control my internal users from sending drawing files of AutoCAD i.e. .dxf and .dwg format.


    • Edited by dhanraj114 Friday, August 12, 2011 6:08 AM
    Friday, August 12, 2011 5:57 AM
  • Hi Terence,

    Thanks. Sorry to be late in replying. I have gone through all the three links provided by you. From the link of blog i have come to know that IFilter are available for different applications. I think given links are providing blocking of Incoming emails. I want to block outgoing mails, especially AutoCAD files, which includes .dxf and .dwg. I have searched for that on internet but i am not able to find any kind of filter for this.

    I think the advice from Lasse may help me i.e. Exchange Edge Server or AV for Exchange. I also want your suggestion and guidence on this.

    Hope you will help me


    Friday, August 12, 2011 6:02 AM
  • Overview of the Edge Transport Server Role
    Applies to: Exchange Server 2010 SP1


    in short, Edge is a SMTP gateway that is designed to sit in DMZ, doing antispam and can also do AV if an AV product is installed.

    If you will it's variant of HUB transport server, but instead haviing contact with AD Exchange HUB sync information to Edge periodically.


    lasse at humandata dot se, http://anewmessagehasarrived.blogspot.com
    • Marked as answer by Terence Yu Friday, August 19, 2011 7:30 AM
    Friday, August 12, 2011 9:59 AM