Comodo Antispam Gateway

• Introduction To Comodo Antispam Gateway
  • Release Notes
  • Purchase License
  • License Information
• Get Started
  • Incoming Filtering Configuration
    • Configure Your Mail Server
    • Configure MX Records
      • Update MX Records In Windows 2003/2008 Server
      • Update MX Records On A Host Using BIND
      • Update MX Records For Comodo DNS
      • Update MX Records For GoDaddy
      • Update MX Records For Enom
      • Update MX Records For Network Solutions
      • Update MX Records For Yahoo! Small Business
      • Update MX Records For 1and1
      • Update MX Records For 4D Web Hosting
      • Update MX Records For DNS Park
      • Update MX Records For DreamHost
      • Update MX Records For DynDNS
      • Update MX Records For IX Web Hosting
      • Update MX Records For No-IP
      • Update MX Records In CPanel
  • Outgoing Filter Configuration
    • Per-User Authentication
    • Outgoing Smarthost Setup
      • Configure QMail To Use A Smarthost
      • Configure PostFix To Use A Smarthost
      • Configure Sendmail To Use A Smarthost
      • Configure Exchange 2000/2003 To Use A Smarthost
      • Configure Exchange 2007/2010 To Use A Smarthost
      • Configure Exchange 2013/2016 To Use A Smarthost
      • Configure Office 365 To Use A Smarthost
      • Configure Exim To Use A Smarthost
        • Configure Exim / CPanel To Use A Smarthost
        • Configure Exim / Directadmin To Use A Smarthost
    • DNS Configuration
• Login To The Admin Console
• The Dashboard Area
• The Admin Console
• Domain Management
  • Add A Domain
  • Delete Domains
  • Edit Domains
  • Validate Domains
  • Manage A Domain
    • Domain Dashboard
    • Incoming
      • Quarantine
      • Manage Archived Mails
      • Incoming Spam Detection Settings
      • Report Spam
      • Delivery Queue
      • Destination Routes
      • Local Recipients
      • Clear Incoming Cache
      • Log Search
      • Domain Aliases
      • Domain Settings
      • Manage Report Subscriptions For Selected Domain
      • Relay Restrictions
      • Geolocation Restrictions
      • SPF Control Settings
    • Outgoing
      • Clear Outgoing Cache
      • Log Search
      • Users
      • Office 365 Activation
    • Email Management
      • Email Size Restriction
      • Blocked Extensions
      • Released Requests
      • Blacklisted Requests
      • Whitelisted Requests
    • Domain Audit Log
      • Audit Log Configuration
      • View Domain Log
    • Domain Rules
      • Rules
      • TLD And GTLD Rules
      • Recipient Whitelist
      • Sender Whitelist
      • Recipient Blacklist
      • Sender Blacklist
      • Whitelist Senders Per User
      • Blacklist Senders Per User
    • Account Management
      • User Account Management
      • Manage User Auto-import
      • View User History
      • Import Users From LDAP
        • LDAP Import Configuration
        • LDAP Import Confirmation List
        • LDAP Import Ignore List
• Audit Log
• Administrator Account Management
  • Administrators
  • User Groups & Permissions
  • Admin Groups & Permissions
  • My Comodo Account
  • My Profile
  • Users History
• Customer Management
  • End User License And Subscriber Agreements
  • View License Information
  • Manage Report Subscriptions
  • Notification Email Settings
• CASG Reports - An Overview
  • Quarantine Report
  • Domain Statistics Report
  • Auto-Imported Users Report
  • Quarantine Release Report
  • Reported Spam Report
• Appendix 1 - CASG Error Codes
• Appendix 2 - CASG Comparison Table
• Appendix 3 -Troubleshooting LDAP
• Appendix 4 - Useful Links
• About Comodo Security Solutions

Update MX Records on a Host Using BIND (and the 'Named' Daemon)

1. Make a backup copy of the zone file (or named.conf) that you intend to edit for MX record updates.

2. Open the Zone file for the mail domain you are configuring (or go to the part of named.conf being used for that zone)

3. Delete all the existing “MX” lines for that domain.

4. Enter a new "IN MX" record with the lowest preference value and enter the FQDN of your preferred CASG service domain.

CASG primary service domains are:

• EU: mxpool1.spamgateway.comodo.com

• US: mxpool1.us.spamgateway.comodo.com

Assign a priority of 1 as this is your primary service.

5. Enter a new "IN MX" record with the next lowest preference value and enter the FQDN of your preferred CASG service domain.

CASG secondary service domains are:

• EU: mxpool2.spamgateway.comodo.com

Please note there is no secondary service domain for the US based service. Leave it blank.

Assign a priority of 2 as this is your secondary service.

6. Find the "@ IN SOA” record and increment the serial number (on the second line of the record).

7. Save the file and check it with named-checkconf.

8. Restart the 'named' daemon.