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Mails from nonexisting domain users

A lot of SPAM looks as from "NonexistigAddres@MyDomain". Idea: Add rule for filtering mails from such senders. (Similar like Directory Harvesting for nonexisting recipients.)

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Jiri Kryze shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →

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  • Jiri Kryze commented  ·   ·  Flag as inappropriate

    If will be possible check senders address looks like from defined our domains against of our domain users(valid addresses), there will be possibility filter out fake-senders and make rule for deletiting such mails (for example).

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