Solved

Barracuda & Exchange 2010

Posted on 2010-08-18
11
1,026 Views
Last Modified: 2012-05-10
I set up a new Barracuda Spam Firewall Vx.  The device is running but once I started pumping mail to it whenever users start up outlook they get an invaild certificate error which they do not get when running without the barracuda.
0
Comment
Question by:wesilva
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 4
  • 3
11 Comments
 
LVL 5

Expert Comment

by:kpoochi
ID: 33467708
Do you have any certificate installed on your firewall?

Check http://support.microsoft.com/kb/940726
0
 
LVL 2

Expert Comment

by:TravisT
ID: 33467741
I too use  Barracuda.  The installation of this advice should not have any bearing on how the users connect to the Exchange box unless you are passing through the Barracuda to get to Exchange which is in no way necessary and I do not recommend it.
0
 

Author Comment

by:wesilva
ID: 33467742
When the barracuda is not in the line I have no problems with my trusted cert which is Mail.mydomainname.com its only when the barracuda is involved that the issue comes up.
0
Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

 
LVL 2

Expert Comment

by:TravisT
ID: 33467844
The Barracudda doesn't need to be in the line.  All INbound mail can pass throiugh the appliance.  Jsut connect to the Exchange server directly.
0
 

Author Comment

by:wesilva
ID: 33467863
i did.  On the firewall I pointed inbound traffic to the barracuda.  I then added my domains to the list and pointed it to the IP of the mail server.  Once I did that my clients started getting the cert error when they started outlook.
0
 
LVL 5

Expert Comment

by:kpoochi
ID: 33467874
Right, for internal communication its not necessary to configure in line with Barracudda. However you can follow the above mentioned article to get it resolved
0
 

Author Comment

by:wesilva
ID: 33467904
Yes I used that article to resolve the issue when I installed exchange originally.  What i dont get is why the barracuda is getting involved with the outlook clients directly
0
 
LVL 2

Expert Comment

by:TravisT
ID: 33467916
You said: "i did.  On the firewall I pointed inbound traffic to the barracuda.  I then added my domains to the list and pointed it to the IP of the mail server.  Once I did that my clients started getting the cert error when they started outlook."

This is not good and explains why the cert error is popping up.

Leave the way your Outlook clients connect to Exchange - alone.
Remove the PAT/NAT on the firewall as this will cause a problem.
Setup up the 'Cudda and simply tell it to forward mail for whatever domain(s) to the proper IP/Server.

Update your MX record from the old Exchange server to the new 'Cudda and that is it, you are done.  No muss no fuss.
0
 
LVL 5

Accepted Solution

by:
kpoochi earned 250 total points
ID: 33468029
In your Internal DNS check the host (A) record for Mail.mydomainname.com. If it is pointing to Barracuda, change to Exchange server internal IP address and restart the DNS services.

So that internal Outlook will not contact the Barracuda
0
 

Author Comment

by:wesilva
ID: 33468118
man my brain was slipping kpoochis post led me to the right path set up a cname for mail.mydomainname.com and the error is gone
0
 
LVL 5

Expert Comment

by:kpoochi
ID: 33468139
Cool....
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

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

This article lists the top 5 free OST to PST Converter Tools. These tools save a lot of time for users when they want to convert OST to PST after their exchange server is no longer available or some other critical issue with exchange server or impor…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

705 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