Xcitium Secure Email Gateway MSP

• Introduction To Xcitium Secure Email Gateway - MSP
  • Purchase Licenses
  • License Information
• Get Started
• Login To The Admin Console
• The Admin Console
• The Dashboard Area
• 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
      • White-listed 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
• CSEG Reports - An Overview
  • Quarantine Report
  • Domain Statistics Report
  • Auto-Imported Users Report
  • Quarantine Release Report
  • Reported Spam Report
• Appendix 1 - CSEG Error Codes
• Appendix 3 - Troubleshooting LDAP
• Appendix 4 - Useful Links
• About Xcitium Security Solutions

Relay Restrictions

 

• The 'Relay restrictions' interface lets you specify message transfer agents (MTA), mail servers, or other mail relays from which incoming mail should be accepted or rejected.

• For example, a business that has regional offices can configure their regional systems to accept only incoming emails from email servers at the home office.

• Administrators can define organization names from which mails should be accepted or rejected. CSEG parses the mail headers of each incoming mail to ensure the existence of an MTA IP address or FQDN of the organization before accepting the mail. If you don't know the name of an organization, you can search for it using the 'Lookup' feature. Enter the IP address of the sender domain.

Add a relay restriction rule

• Click 'Incoming' from the left then select 'Relay Restrictions'.

The 'Relay restrictions' interface for the domain will open:

• Select the 'Restrict email acceptance to the following relay servers' check box
  

• Click the 'Add' button. The 'Add/Edit restriction' dialog will appear:

• Enter the organization name in the 'Organization name' text box

• If you are not sure about the organization name, obtain the IP address of the mail server from any incoming mail from the organization and enter it in the 'Lookup IP for organization name' field. Click 'Lookup' to perform the search.

• CSEG will perform a lookup from WHOIS.com website and auto-populate the Organization name field.

• Choose the acceptance policy for emails from the organization's mail server:

• Accept - All mails from the selected organizations will be accepted. Those from other organizations will be blocked.

• Reject - All mails from the selected organizations will be blocked. Those from other organizations will be accepted.

• Click 'Save' for the rule to take effect.

• Repeat the process till you have added all the organizations.

The administrator need to add a rule for each organization from which the mails are to be accepted or rejected.

Illustrations: 1. For example, if you want to accept mails only from two domains, namely gooddomain1.com and gooddomain2.com and reject mails from all the other mail servers, create two rules, one for gooddomain1.com and other for gooddomain2.com. Rule 1 - Accept gooddomain1.com and block all other domains Rule 2 - Accept gooddomain2.com and block all other domains Only the incoming mails from gooddomain1.com and gooddomain2.com will be accepted. Those from all the other domains will be rejected. 2. For example, if you want to block mails only from two domains, namely baddomain1.com and baddomain2.com and allow mails from all the other mail servers, create two rules, one for baddomain1.com and other for baddomain2.com. Rule 1 - Reject baddomain1.com and allow all other domains Rule 2 - Reject baddomain2.com and allow all other domains Only the incoming mails from baddomain1.com and baddomain2.com will be blocked. Those from all the other domains will be accepted. You can create any number of 'Allow' and 'Reject' rules. The 'Accept 'rules have more priority and reject rules will be skipped in case of any rule conflict.

The incoming mails from blacklisted domains in the global or domain blacklist will be rejected even if they are accepted by the relay restrictions rules. The priority order of rules checked on allowing an email is as follows:

1. Global blacklist

2. Domain whitelist/blacklist

3. Relay restriction rules

4. Per user whitelist/blacklist

Note: The 'Relay restrictions' is disabled for TRIAL customers.

Edit Relay Restriction Rules

You can change the organization name or acceptance policy of any rule at any time.

Edit a rule

• Choose the rule to be edited and and click the 'Edit' button.

The Add/Edit restriction dialog will appear.

• Edit the fields and policy options as required. For more details refer to the explanation under To add a Relay Restriction Rule.

• Click 'Save' for your changes to take effect.

Remove Relay Restriction Rules

You can remove unwanted rules at anytime from CSEG.

Remove a relay restriction rule

• Choose the rule you want to remove and click the 'Delete' button

• Click 'OK' in the confirmation dialog.