+ Post New Thread
Page 3 of 3 FirstFirst 123
Results 31 to 35 of 35
Internet Related/Filtering/Firewall Thread, EMail Content Filtering in Technical; @ Willott - I would hope too that some sort of AV is deployed on the desktops to caputure the ...
  1. #31

    Join Date
    Dec 2008
    Location
    Essex
    Posts
    2,144
    Thank Post
    1
    Thanked 326 Times in 316 Posts
    Rep Power
    77
    @Willott - I would hope too that some sort of AV is deployed on the desktops to caputure the virus if it's opened and depending on the AV on the desktop and config, if AV is configured to stop mass mail on port 25. Also, depends on sites you are browsing and if the your web proxy content is good enough to pick mass mail viruses, again this comes down to your desktop AV to stop mass mail on 25.

    Even if you were infected and the email would go to your external filtering/scanning, the impact this will have on your exchange server will have a serverr performance hit. In addition to the performance hit, your transactions logs will genertaed excessively which will bring down your Exchange stores.

    As an example, I have seen customers who have had calendar appoinments in their mailbox which have had some vbs code in them, this message was never detected by AV/filtering and all of a sudden, when the message re-occuring appointment 'poped up' this caused to generate emails within the EDB itself, so you could not track the message via MT. This did not send emails to others but just generated 40 transaction logs per min for that mailbox. Which caused Exchange stores to dismount. When this user was sending genuine appointments to others users within the office, this issue multipled bringing dowm more exchange servers and storage groups.

    Having AV scanning inside the mailstore/database found this. This is why I recommend at least weekly scans for your stores.

    Sukh

  2. #32


    tom_newton's Avatar
    Join Date
    Sep 2006
    Location
    Leeds
    Posts
    4,473
    Thank Post
    866
    Thanked 848 Times in 670 Posts
    Rep Power
    196
    Just caught up on thees thread.

    For the smoothie speculators, we do an SMTP/PoP proxy. You could probably reroute internal mails through it, though I don't recall anyone who is doing that. "Zap" is the name )which we are trying to retire as it is hardly descriptive) for a module which provides the two proxies. Mailshell provides anti-spam/phishing capability to this module, and VIPRE the anti-malware. There's no cyber-bullying rules... yet.

  3. #33

    john's Avatar
    Join Date
    Sep 2005
    Location
    London
    Posts
    10,530
    Thank Post
    1,496
    Thanked 1,050 Times in 919 Posts
    Rep Power
    303
    Quote Originally Posted by tom_newton View Post
    "Zap" is the name )which we are trying to retire as it is hardly descriptive)
    Oh no please don't I like that name as it Zaps the Spam and Viruses, I think its a great name

  4. #34


    tom_newton's Avatar
    Join Date
    Sep 2006
    Location
    Leeds
    Posts
    4,473
    Thank Post
    866
    Thanked 848 Times in 670 Posts
    Rep Power
    196
    Quote Originally Posted by john View Post
    Oh no please don't I like that name as it Zaps the Spam and Viruses, I think its a great name
    I think it was George's name originally... no-one else had anything better at the time

  5. #35

    GrumbleDook's Avatar
    Join Date
    Jul 2005
    Location
    Gosport, Hampshire
    Posts
    9,933
    Thank Post
    1,339
    Thanked 1,783 Times in 1,106 Posts
    Blog Entries
    19
    Rep Power
    594
    Quote Originally Posted by tom_newton View Post
    I think it was George's name originally... no-one else had anything better at the time
    That's it ... blame management ... it is always their fault!

  6. Thanks to GrumbleDook from:

    tom_newton (14th April 2011)

SHARE:
+ Post New Thread
Page 3 of 3 FirstFirst 123

Similar Threads

  1. Pure message email content filtering : a list and a process
    By cjohnsonuk in forum Internet Related/Filtering/Firewall
    Replies: 2
    Last Post: 9th June 2010, 12:22 PM
  2. Best content filtering?
    By Quackers in forum Wireless Networks
    Replies: 10
    Last Post: 12th March 2008, 07:59 AM
  3. Web Content Filtering
    By richard.thomas in forum Network and Classroom Management
    Replies: 5
    Last Post: 14th November 2007, 09:50 AM
  4. Content filtering
    By mitcheln in forum School ICT Policies
    Replies: 11
    Last Post: 20th December 2006, 08:38 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •