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Email Appliance - Blocking Top Level Domains

Caninus

What is the best way to block all emails with sender addresses in unwanted country code top level domains, like blocking all emails from .cn .ru .hk etc.?

:34445


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    Hi Caninus,

    I'm afraid you can't block a top level domain at the moment.  You can only block individual domains.

    What you could do is use a regular expression to evaluate the 'From' header.  This is done in 'Configuration > Policy > Additional Policy' using a 'Message attributes' rule type.

    But obviously bear in mind that the 'From' header can be spoofed and isn't necessarily the same as the envelope sender.

    If you're having problems with Spam I'd suggest the first step is to submit samples and call our support guys:

    http://www.sophos.com/en-us/support/knowledgebase/23113.aspx

    Hope this helps,
    Tom.

    :34559
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  • 0

    Hi Caninus,

    I'm afraid you can't block a top level domain at the moment.  You can only block individual domains.

    What you could do is use a regular expression to evaluate the 'From' header.  This is done in 'Configuration > Policy > Additional Policy' using a 'Message attributes' rule type.

    But obviously bear in mind that the 'From' header can be spoofed and isn't necessarily the same as the envelope sender.

    If you're having problems with Spam I'd suggest the first step is to submit samples and call our support guys:

    http://www.sophos.com/en-us/support/knowledgebase/23113.aspx

    Hope this helps,
    Tom.

    :34559
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