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Re: Address verification database

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  • Ralf Hildebrandt
    ... Here: # postmap -s btree:verify | sort | uniq | wc -l 104785 # postmap -s btree:verify | awk {print tolower($1)} | sort | uniq | wc -l 104654 That s
    Message 1 of 7 , Jan 28, 2012
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      > According to sender verification logs for the last months on my
      > small server, case folding the domain part would reduce the number
      > of unique senders from 7436 to 7433 (0.04%), and case folding the

      Here:
      # postmap -s btree:verify | sort | uniq | wc -l
      104785
      # postmap -s btree:verify | awk '{print tolower($1)}' | sort | uniq | wc -l
      104654

      That's 0.125% difference, so it gets worse the bigger the site gets :)

      > entire address would reduce the number of unique senders from 7436
      > to 7419 (0.23%). Most of these sender addresses are spam, and they
      > are used only a few times.

      --
      Ralf Hildebrandt
      Geschäftsbereich IT | Abteilung Netzwerk
      Charité - Universitätsmedizin Berlin
      Campus Benjamin Franklin
      Hindenburgdamm 30 | D-12203 Berlin
      Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
      ralf.hildebrandt@... | http://www.charite.de
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