Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Exchange 2010 Secure Email

Posted on 2013-12-23
6
Medium Priority
?
372 Views
Last Modified: 2014-02-22
Business partner requiring secure email communication. Not a problem, or so I thought. Company has Exchange 2010 with a Barracuda Spam/Virus Firewall filtering inbound mail only. Outbound mail is sent directly from Exchange. fqdn for mail is pointing to Barracuda.

Mail flow is working fine. No problems AFAIK.

I have purchased cert for securing the email. It is using the fqdn of mail. In talking with the tech support at Barracuda, the Barracuda sends the email up to their service for encryption. End user would receive email that encrypted email is available by clicking on link. An additional step or two required by the end user. Not really the way that I wanted it to work.

Not sure if the barracuda will pass encrypted email. I could have the email for the biz partner domain to bypass filtering.

I was planning on configuring encrypted email on the exchange server. Then I remembered that the Barracuda was in the path of the mail flow (inbound only).

Possible work around.

Adding another MX record to bypass the Barracuda, though it would open up email traffic from all servers.

Use a different public IP address for exchange encrypted mail. Filter at the firewall to allow only smtp traffic from biz partner email servers. Setup receive connector with fqdn of mail to allow inbound email.

Use the barracuda to perform the secure communication.

Any ideas that will help, are appreciated.

Thanks!
0
Comment
Question by:rojiru
6 Comments
 
LVL 31

Expert Comment

by:Gareth Gudger
ID: 39737371
I believe encrypted mail is unscannable to the Barracuda and can be set to just forward it on.
0
 
LVL 1

Expert Comment

by:x278384
ID: 39737386
I am not familiar with Barracuda, but as I know if you like to encrypt the mail communications, use email gateway is the easist approach.

What you discribe there is Https link that will be sent to recipiants, that just like trans the mail to https content.

By I know there are another way to encrypt the mail, like policy rules for certain domain users.

My friends, they use Cellopoint to approch this, maybe you could check this out.

and see if Barracuda has the same thing.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:rojiru
ID: 39738177
Originally my thought was to use Exchange to do the encryption/decryption. Since the barracuda is in the path of the mail flow, I will probably use it to start. This may be the easiest path. Hopefully I can get some time to work it out in a lab. Of course I may never get the chance due to work load.

I am waiting on the other party to contact me, so we can test operation.

Thanks for the help.
0
 

Accepted Solution

by:
rojiru earned 0 total points
ID: 39866112
Thanks everyone for the ideas. I ended up using the barracuda to handle the email encryption. Some of their techs were misleading in the information given to me. So basically email is encrypted between the client and Exchange, and then between Exchange and the barracuda. Then the barracuda handles the encryption with outside email servers. I finally found the correct info thru one of their techs. Also, the ssl certs were not recognized by the barracuda. Once this was corrected, it worked fine. Except for the issue with the cisco firewall and its fixup protocol for esmtp. I had to disable it altogether.
0
 

Author Closing Comment

by:rojiru
ID: 39878986
I needed to keep the original configuration due to spam and virus filtering by barracuda. Since barracuda's support was not initially helpful, I turned to Experts Exchange. Thanks!
0

Featured Post

Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

Question has a verified solution.

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

The main intent of this article is to make you aware of ‘Exchange fail to mount’ error, its effects, causes, and solution.
With so many activities to perform, Exchange administrators are always busy in organizations. If everything, including Exchange Servers, Outlook clients, and Office 365 accounts work without any issues, they can sit and relax. But unfortunately, it…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
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

972 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