Anti-Spoofing
- Click the 'Modules' tab on the left, then click 'Anti-spoofing', to open the 'Anti-spoofing' interface
- Email spoofing is a technique used to forge email headers so that the message appears to originate from a source other than the true sender.
- Email spoofing is possible because SMTP (Simple Mail Transfer Protocol) being the main protocol used in sending emails, does not include an authentication mechanism.
- The 'Anti-Spoofing' feature in Secure Email Gateway prevents spammers from sending messages with falsified 'From' addresses from your protected domains.
- It uses SPF records, which is a type of DNS record that identifies which servers are permitted to send emails on behalf of the protected domains.
- Secure Email Gateway allows you to add a range of IP addresses for a protected domain, which an MTA (Mail Transfer Agent) can look up to confirm whether an email is being sent from an authorized server.
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Select the 'Enable Anti-Spoofing' check box to add IP addresses for your domains.
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Anti-Spoofing – Table of Column Descriptions |
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Column Header |
Description |
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Domain Name |
Displays the name of the protected domain. |
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IP Address |
Displays IP range added for the domain. |
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Action |
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Delete the domain name. |
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Edit the domain IP address. |
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Export |
Allows to export the IP address for a domain. |
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The interface allows administrators to:
- Select the 'Enable Anti-Spoofing' option
- Select the domain for which you want to add the IP range
- Click the
button
- To add the IP range manually, enter the address each per line in the field and click the 'Save' button.
- To import from a saved file, click the 'Import' link
- Click 'Upload', navigate to the location where the file is saved and click 'Open'
- Repeat the process to add more files to the list.
- To remove a file from the list, click the 'Clear' link beside it.
- To remove all the files, click 'Clear All' at the top.
- Click 'Save'.
- Click 'Delete all' to remove all the addresses and click 'OK' in the confirmation screen.
- Click 'Save' to add the IP addresses for the domain.
-
Click the
button under the 'Action' column beside a domain name that you want
to edit the IP addresses.
The 'Anti-spoofing Edit' screen will be displayed.
- Edit the address as required and click the 'Save' button.
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To delete a domain name from the list, click the
button under the 'Action' column and confirm it in the confirmation
screen.
Export the list of IP addresses for a domain
- Click the 'Export' link under the 'Action' column
- The SPF IP list will be downloaded as a text file to your system.