How to Configure Barracuda Load Balancer ADC with Barracuda Message Archiver for High Availability SMTP Journaling

Microsoft Exchange allows a Journal recipient to be either a mailbox or contact. By using a contact with an email address that is part of a non-existent domain, you can create a send connector that uses SMTP to deliver journaled mail to the Barracuda Message Archiver. Use the steps in this article to configure Envelope Journaling.

Step 1. Register Each Exchange Server as a Trusted SMTP Server

To ensure that archiving begins as soon as your Exchange Servers are configured to send journal copies, first register each Exchange Server that is in a Client Access Server (CAS) role as a Trusted SMTP Server with the Barracuda Message Archiver on the MAIL SOURCES > SMTP page in the web interface.

1. Log into the Barracuda Message Archiver web interface, and go to the MAIL SOURCES > SMTP page.
2. In the Trusted SMTP Servers section, enter the details for each Exchange Server that is to journal directly to the Barracuda Message Archiver; click Add after entering the details for each Exchange Server, and then click Save. 

Step 2. Create a Remote Domain From the Exchange Management PowerShell

The Remote Domain must not be your normal email domain. The remote domain must be a non-existent and non-routable/unresolvable domain from either inside or outside your organization (such as bma.int). This domain must be used for the email address of the Mail Contact that is to be the journaled message recipient.

1. Open the Exchange Management Shell. 
2. Execute the following command to create the remote domain; this command ensures TNEF encoding is disabled: 
   New-RemoteDomain -DomainName bma.int -Name "Message Archiver Domain"  
3. Next, execute the following command to enable auto-forwarding:
   Get-RemoteDomain | Where {$_.DomainName -eq "bma.int"} | Set-RemoteDomain -TNEFEnabled $false -AutoForwardEnabled $true
4. Enter the following command to verify the settings:
   Get-RemoteDomain | Where {$_.DomainName -eq "bma.int"} |Format-table Name, DomainName, TNEFEnabled, AutoForwardEnabled

Step 3. Create a Recipient Mail Contact/Alternate Email Address

The Mail Contact is the account that is to act as a "holding location" for journaled messages. The email address associated with this account is the designated recipient and must be associated with a non-existent, non-routable dummy Domain Name created above in Step 2. Create a Remote Domain From the Exchange Management PowerShell. Use the following steps to create the Mail Contact:

1. Log in to the Exchange Admin Center (EAC), and click recipients > contacts.
2. Click the + symbol, and click Mail contact:
    
3. In the  new mail contact  dialog box, enter the following details:
   1. First name – Type  Barracuda
   2. Initials – Leave this field blank
   3. Last name – Type  Journaling
   4. Display name – This field populates automatically
   5. Alias – Type  BMA_Journaling
   6. External email address – Type  bma_journaling@bma.int
      
4. Click save .

Step 4. Create a Send Connector for the Remote Domain

To route journaled mail that is sent to the contact to the Barracuda Message Archiver, use the following steps to create a Send Connector for the Remote Domain:

1. Log in to the EAC, click mail flow in the left pane, select send connectors at the top of the page, and then click the + symbol to create a new send connector:
   
2. In the Name field, enter a name for the connector, and in the Type section, select Custom:
   
3. Click next. In the Network settings page, select Route mail through smart hosts:
   
4. Click next. In the add smart host page, type the service IP address configured in Step 2. Configure the Barracuda Load Balancer ADC , for example, type: 192.168.1.100
   
5. Click save. The FQDN or IP Address displays in the SMART HOST list; verify the address:
   
6. Click next. In the Smart host authentication page, because authentication is not used on the smart host connection to the Barracuda Message Archiver, no changes are necessary; click next:
   
7. In the Address space section, click the + symbol:
   
8. In the Address Space page, enter the domain that matches the domain for the external email address used to create the journal contact, for example, bma.int (see Step 2. Create a Remote Domain From the Exchange Management PowerShell):
   
9. The domain is added to the Address space list:
   
10. Click next. In the Source server section, click the + symbol:
    
11. Verify all of the appropriate Exchange Servers are listed; click add to add additional servers:
    
12. Click ok. In the Source server page, the selected servers display:
    
13. Click finish. The new send connector displays as enabled in the send connectors list:
    
14. Click the Edit ( ) icon to edit the Send Connector properties. From the Maximum send message size (MB) drop-down list, select unlimited, and then click save:
    

Step 5. Set Up Mailbox Database Journaling

Use the following steps to set up mailbox database journaling:

1. Log into the EAC, click servers in the left pane, select database at the top of the page, and then click the Edit ( ) icon to edit the database properties:
2. In the Properties page, click maintenance in the left pane:
   
3. In the maintenance page, click browse following the Journal recipient field:
   
4. Navigate to and select the destination location for journaled messages, for example, journal@bma.int:
   
5. Click ok to select the journal message recipient. The recipient displays in the maintenance page:
   
6. Click save to save your settings.

Microsoft Exchange allows a Journal recipient to be either a mailbox or contact. By using a contact with an email address that is part of a non-existent domain, you can create a send connector that uses SMTP to deliver journaled mail to the Barracuda Message Archiver. Also see Understanding SMTP Forwarding and Trusted Servers.

Step 1. Register Each Exchange Server as a Trusted SMTP Server

To ensure that archiving begins as soon as your Exchange Servers are configured to send journal copies, first register each Exchange Server that is in a Client Access Server (CAS) role as a Trusted SMTP Server with the Barracuda Message Archiver on the MAIL SOURCES > SMTP page in the web interface.

1. Log into the Barracuda Message Archiver web interface, and go to the MAIL SOURCES > SMTP page.
2. In the Trusted SMTP Servers section, enter the details for each Exchange Server that is to journal directly to the Barracuda Message Archiver; click Add after entering the details for each Exchange Server, and then click Save.

Step 2. Create a Remote Domain From the Exchange Management PowerShell

The Remote Domain must not be your normal email domain. The remote domain must be a non-existent and non-routable/unresolvable domain from either inside or outside your organization (such as bma.int). This domain must be used for the email address of the Mail Contact that is to be the journaled message recipient.

1. Open the Exchange Management Shell. 
2. Execute the following command to create the remote domain; this command ensures TNEF encoding is disabled and auto-forwarding is enabled:
   New-RemoteDomain -DomainName bma.int -Name "Message Archiver Domain"  
   Get-RemoteDomain | Where {$_.DomainName -eq "bma.int"} | Set-RemoteDomain -TNEFEnabled $false -AutoForwardEnabled $true

3. Enter the following command to verify the settings:
   Get-RemoteDomain | Where {$_.DomainName -eq "bma.int"} |Format-table Name, DomainName, TNEFEnabled, AutoForwardEnabled

   This command ensures TNEF encoding is disabled and auto-forwarding is enabled. Barracuda Networks recommends disabling TNEF encoding. Auto-forwarding is enabled to allow mail for the contact to be forwarded to the Barracuda Message Archiver.

Step 3. Create a Recipient Mail Contact/Alternate Email Address

The Mail Contact is the account that is to act as a "holding location" for journaled messages. The email address associated with this account is the designated recipient and must be associated with a non-existent, non-routable dummy Domain Name created above in Step 2. Create a Remote Domain From the Exchange Management PowerShell. Use the following steps to create the Mail Contact:

1. Log in to the Exchange Admin Center (EAC), and click recipients > contacts.
2. Click the + symbol, and click Mail contact:
   
3. In the new mail contact dialog box, enter the following details:
   
   1. First name – Type  Journal
   2. Initials – Leave this field blank
   3. Last name – Type  Contact
   4. Display name – This field populates automatically
   5. Alias – Type  JournalContact
   6. External email address – Type  journal@bma.int
       

4. Click save. The new contact displays in the contacts list:
   

   Hide Contact from Global Address List
   Barracuda Networks recommends hiding the mail contact from the GAL. One method to hide the mail contact is to utilize the following shell command:

   Get-MailContact | Where {$_.Name -eq "Journal Contact"} | Set-MailContact -HiddenFromAddressListsEnabled $True

   The setting can be verified by executing:

   Get-MailContact | Where {$_.Name -eq "Journal Contact"} | Format-table Name, HiddenFromAddressListsEnabled    

   Alternate Journaling Mailbox
   You can configure an additional parameter in Exchange 2013 to specify that a journal report temporarily cannot be delivered. For details, refer to the Journal Reports section of the Microsoft TechNet Journaling article.

5. In the EAC, click recipients in the left pane, select mailboxes at the top of the page, and click the + symbol to create an alternate journaling mailbox:
    
6. In the new user mailbox page, enter details for the alternate journaling mailbox:
   
7. Click save. The new mailbox displays in the mailboxes list:
    

Step 4. Create a Send Connector for the Remote Domain

To route journaled mail that is sent to the contact to the Barracuda Message Archiver, use the following steps to create a Send Connector for the Remote Domain:

1. In the EAC click mail flow in the left pane, select send connectors at the top of the page, and then click the + symbol to create a new send connector:
   
2. In the Name field, enter a name for the connector, and in the Type section, select Custom:
   
3. Click next. In the Network settings page, select Route mail through smart hosts:
   
4. Click next. In the add smart host page, type the  service IP address configured  in  Step 2. Configure the Barracuda Load Balancer ADC, for example, type:  192.168.1.100
   
5. Click save. The FQDN or IP address displays in the SMART HOST list; verify the address:
   
6. Click next. In the Smart host authentication page, because authentication is not used on the smart host connection to the Barracuda Message Archiver, no changes are necessary; click next:
   
7. In the Address space section, click the + symbol:
   
8. In the Address Space page, enter the domain that matches the domain for the external email address used to create the journal contact, for example, bma.int (see Step 2. Create a Remote Domain From the Exchange Management PowerShell):
   
9. The domain is added to the Address space list:
   
10. Click next. In the Source server section, click the + symbol:
    
11. Verify all the Exchange Servers that are in the CAS role are listed; click add to add additional servers:
    
12. Click ok. In the Source server page, the selected servers display:
    
13. Click finish. The new send connector displays as enabled in the send connectors list:
    
14. Click the Edit ( ) icon to edit the Send Connector properties. From the Maximum send message size (MB) drop-down list, select unlimited:
     
15. Click save.

Step 5. Create a Journal Rule

Use the following steps to set up a journal rule:

1. Log into the Microsoft Purview compliance portal, navigate to Solutions > Data lifecycle management > Exchange (legacy) > Journal rules, and then select + New rule.
2. On the Define journal rule settings page, provide a name for the journal rule and then configure the following options:
   1. Send journal reports to – Type journal@[non-routable domain]. For example, type: journal@bma.int

   2. Journal rule name – Type Barracuda Message Archiver Journal Rule

   3. Journal messages sent or received from – Select Apply to all Messages.

   4. Type of message to journal – Select All Messages.

3. Select Next, review the settings, and then click Submit to create the journal rule.

4. To create an NDR recipient, navigate to Solutions > Data lifecycle management > Exchange (legacy).
5. Click the Settings icon.

6. In Send undeliverable journal reports to, enter the email address of a valid user account. Note that the mailbox must be a mail user, mail contact, or external user, not an Exchange Online Mailbox.

7. Click Save.
   
   

Step 1. Register Each Exchange Server as a Trusted SMTP Server

To ensure that journaled message archiving begins as soon as your Exchange Servers are configured to send them, register each Exchange Server as a Trusted SMTP Server with the Barracuda Message Archiver (on the MAIL SOURCES > SMTP page) prior to configuring your Exchange Servers. Also see Understanding SMTP Forwarding and Trusted Servers.

Once the Barracuda Message Archiver is configured to receive SMTP traffic, you must complete the following from the Exchange Management Console (EMC) of each Exchange Server that will be journaling directly into the Barracuda Message Archiver:

• From Recipient Configuration – Create a Mail Contact that is to act as the recipient of all journaled messages.
• From Organization Configuration > Hub Transport – Create the following items:
  • a (non-routable) Remote Domain, to act as the recipient domain for journaled traffic
  • a Send Connector, for routing journaled messages
  • a Journaling Rule to actually enable journaling on your Exchange Server

Step 2. Configure the Barracuda Message Archiver

On the Barracuda Message Archiver, use the following steps to enable SMTP forwarding:

1. Go to the MAIL SOURCES > SMTP page.
2. In the Trusted SMTP Servers section, enter the IP address of each Exchange Server that is to journal directly to the Barracuda Message Archiver.

Step 3. Create a Remote Domain

The Remote Domain must be a non-existent or externally non-routable and unresolvable domain, from either inside or outside your organization, and must match the Mail Contact that is the recipient of journaled messages as it is used by the Exchange Server for routing all SMTP Journal traffic. Use the following steps to create a remote domain:

1. Open the EMC, expand Organization Configuration, select Hub Transport, and click the Remote Domains tab in the center pane.
2. In the Actions panel in the right pane, click New Remote Domain. The New Remote Domain dialog displays.
3. Enter a Name to describe the domain, and the actual Domain name you want to use. In this example, bma.int is the "fake" domain name that is used. You will use this domain name later when creating the Mail Contact:
   
4. Click New to verify the domain settings, and click Finish to save your settings. The newly created domain displays in the Remote Domains list.
5. Double-click on the newly created domain to open the Properties dialog for the newly created domain, and:
   
   • In Exchange 2007, select Format of original message sent as attachment to the journal report.
   • In Exchange 2010, select the Message Format tab in the Properties dialog box.
6. Select the following options to ensure journal messages sent to this domain are MIME Plain Text format (rather than the unsupported Exchange Rich Text format):
   
   • In the Message Format Options section, turn on Allow automatic forward.

   • In the Exchange rich-text format section, select Never Use:
     

     Verify that only Never use and Allow automatic forward are selected in the dialog box.

7. Click Apply to save your settings, and click OK to close the Properties dialog.

Step 4. Create a Mail Contact

The Mail Contact is the account that is to act as a "holding location" for journaled messages. The email address associated with this account is the designated recipient, and should be associated with a non-routable "dummy" domain name. Use the following steps to create a Mail Contact:

1. In the EMC, expand Recipient Configuration, select Mail Contact, and in the Actions panel, click New Mail Contact:
    
2. In the dialog, select New Contact, and click Next.
3. Enter a First name and Last name; the Name field automatically populates based on the entered values. Enter an Alias:
   

4. Click Edit to the right of the External e-mail address field, and in the SMTP Address dialog, enter the delivery email address, for example, type: BMA_Journal@bma.int
   

   The account name can be anything you want, but the domain name must match what you created in the preceding section, Create a Remote Domain.

5. Click OK to close the dialog box. In the Wizard, click Next to verify the information:
    
6.  Click New to create the Mail Contact. The newly-created contact appears in the Mail Contact list. Click Finish to close the Wizard.

Step 5. Create a Send Connector

1. In the EMC, expand Organization Configuration, select Hub Transport, and select the Send Connector tab. In the Actions panel, and click New Send Connector. The New Send Connector dialog displays. Enter a Name to identify this send connector, for example, type:  Barracuda Message Archiver
   
2. From the Select the intended use for this Send connector menu, select Custom, and click Next.
3. In the Address Space section, click Add; the SMTP Address Space dialog box displays:
   
4. In the Address space field, enter the domain created earlier, for example, bma.int, and click OK. The SMTP connector is added:
   
5. Click Next. Select Route mail through the following smart host:
   
6. Click Add. In the Add smart host dialog box, select IP address, and type the  service IP address configured in Step 2. Configure the Barracuda Load Balancer ADC, for example, type:  192.168.1.100
   
7. Click OK to add the IP address. Click Next, then click Next again.
8. In the Source Server page, if your Exchange server is not already listed, click Add to search for and add the server to this list. Click Next to verify your configuration, and click New to create the Send Connector. Click Finish to return to the Send Connectors tab; the newly-created Send Connector displays in the list.
9. Right-click on the new Send Connector, and click Properties.
10. In the Properties dialog box, clear Maximum message size (KB):
    
11.  Click Apply, and then click OK to save your changes and close the dialog box.

Step 6. Create a Journaling Rule

Both the Standard and Enterprise versions of Microsoft Exchange Server 2007 and 2010 support Standard and Premium Journaling. Open the EMC, and complete the following steps to add a journaling rule:

1. In the EMC, expand Organization Configuration, select Hub Transport, and select the Journal Rules tab.
2. In the Actions panel, click New Journal Rule; the New Journal Rule dialog displays.
3. Enter a Rule name, and for the Send Journal reports to e-mail address, click Browse and navigate to and select the mail contact created in the section Create a Mail Contact; for example,  BMA_Journal@bma.int
    
4. Select the Scope for archiving; the recommended setting is Global - all messages for the most complete coverage.
5. Turn on Enable Rule, click New to create the Journaling rule, and click Finish to return to the Journal Rules tab where the newly-created rule displays in the list.