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DNSBL on local emails ?

 
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aho



Joined: 27 Feb 2018
Posts: 4

PostPosted: Wed Feb 28, 2018 11:48 am    Post subject: DNSBL on local emails ? Reply with quote

Team,
it seems, the DNSBL option does not work for emails already received from the server (in local folders). Is this as designed ??
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vetaltm
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Joined: 05 Feb 2006
Posts: 657

PostPosted: Wed Feb 28, 2018 12:12 pm    Post subject: Reply with quote

DNSBL is used only during blocking spam by headers, when there is no message body available. It requires accessing the remote network services. So it is a slow procedure, and using it for fully downloaded messages doesn't make sense. The other methods allow to classify the downloaded mail faster and with better precision.
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