[SURBL-Discuss] Re: Combined SURBL A record format (Was: Re: Bill Stearns' sa-blacklist available as SURBL: ws.surbl.org)

Sidney Markowitz sidney at sidney.com
Wed Apr 21 21:42:28 CEST 2004

Jeff Chan wrote:
> The bitmask approach is more compact, but the multiple A record
> approach is more human-readable and transparent IMO

I don't think human-readability is necessary for an RBL. And the bitmask 
format is transparent to a program and is more efficient for a program 
to use. Making it readable to a human could be the task of a query 
program that is designed to be used by a human. For example, if you have 
a web page form to query the SURBL it could accept a host or domain name 
or a URI and display in a list form instead of as a bitmask.

  -- sidney

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