Setting up LDAP/Active Directory on Mail server

Although it is mot mandatory to use LDAP/Active Directory it makes it really easier for the Barraduca SPAM filter to validate legitimate recipients and map aliases, etc.

You should be able to login at https://spam.his.com using your email address and your regular email password.

To access the LDAP settings as Domain Administrator:
Once logged-in,

• Click on Manage Domain next to interaction.org.
• Click on the Users tab
• Click on LDAP configuration

You will need the login information to the Active Directory.

• Bind DN (Username):
  Distinguished Name (DN) of a user in your directory that has read access to all information about valid users. This is the LDAP/Exchange Username under which LDAP queries will be performed.

• Bind Password:
  Password for the user specified above

The LDAP port 389 should be opened to outside connections on the server.
Here are the IP blocks you can whitelist:

216.194.248.0/24
108.56.65.0/24

For more information, see: Barracuda Knowledgebase
How do I configure LDAP/Active Directory verification on my Barracuda Spam & Virus Firewall?
https://www.barracuda.com/support/knowledgebase/50160000000GkhT