DNSWL

From Seo Wiki - Search Engine Optimization and Programming Languages
Jump to navigationJump to search

DNSWL (DNS-based whitelist) is both a generic term and a specific list. The specific list DNSWL.org, lists over 50,000 legitimate SMTP senders[1].

Generic need for whitelisting

Natural language understanding is not a mature field. Common computer processes used for spam filtering apply heuristics to avoid presenting too many useless messages to email recipients. This has the severe impact of reducing SMTP reliability[2] by creating false positives, i.e. silently dropping legitimate messages. Whitelists tackle the task of vouching for a sender, which implies identifying an accountable party that the sender belongs to.

DNSWL.org

DNSWL.org has been founded on 1st November 2006 by Matthias Leisi[3]. Legitimate senders can register for free. Most DNS servers are sponsored by various organizations worldwide[4].

DNSWL.org lists IP addresses, but also hold domain names, category, and email contact addresses. Each IP address is given a "trustworthiness" level; applications, e.g. SpamAssassin, typically decrease the "spamminess" score of a message by a value proportional to that level.

See also

References

  1. ↑ {{Expansion depth limit exceeded|[[{{{Expansion depth limit exceeded}}} |{{{Expansion depth limit exceeded}}}{{Expansion depth limit exceeded|, {{{Expansion depth limit exceeded}}} }}]] |{{{Expansion depth limit exceeded}}}{{Expansion depth limit exceeded|, {{{Expansion depth limit exceeded}}} }} }}{{Expansion depth limit exceeded|[{{{Expansion depth limit exceeded}}} {{{Expansion depth limit exceeded}}}] |{{{Expansion depth limit exceeded}}} }}, {{Expansion depth limit exceeded|{{{Expansion depth limit exceeded}}} |{{{Expansion depth limit exceeded}}} }}.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle={{Expansion depth limit exceeded}}&rft.aulast=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.au=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.au=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.date=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.pages=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft_id=&rfr_id=info:sid/en.wikipedia.org:DNSWL"> 
  2. ↑ See Bounce message for a discussion about delivery errors, and Backscatter (e-mail) for why they cannot always be noticed to the sender.
  3. ↑ {{Expansion depth limit exceeded|[[{{{Expansion depth limit exceeded}}} |{{{Expansion depth limit exceeded}}}{{Expansion depth limit exceeded|, {{{Expansion depth limit exceeded}}} }}]] |{{{Expansion depth limit exceeded}}}{{Expansion depth limit exceeded|, {{{Expansion depth limit exceeded}}} }} }}{{Expansion depth limit exceeded|[{{{Expansion depth limit exceeded}}} {{{Expansion depth limit exceeded}}}] |{{{Expansion depth limit exceeded}}} }}, {{Expansion depth limit exceeded|{{{Expansion depth limit exceeded}}} |{{{Expansion depth limit exceeded}}} }}.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle={{Expansion depth limit exceeded}}&rft.aulast=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.au=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.au=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.date=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft.pages=%7B%7B%7B%3Cspan+class%3D%22error%22%3EExpansion+depth+limit+exceeded%3C%2Fspan%3E%7D%7D%7D&rft_id=&rfr_id=info:sid/en.wikipedia.org:DNSWL"> 
  4. ↑ DNSWL's thanks page doesn't list its sponsors extensively. Robtex's page and whois data at PIR.org are more up to date.

External links

dnswl.org

{{Expansion depth limit exceeded|plain||
 
}}Spamming
Protocols

{{Expansion depth limit exceeded|name = |state = |navbar = |border = {{Expansion depth limit exceeded|{{{Expansion depth limit exceeded}}}|child}}

|title = |above = |below = |image = |imageleft =

|group1 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group2 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group3 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group4 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group5 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group6 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group7 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group8 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group9 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group10 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group11 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group12 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group13 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group14 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group15 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group16 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group17 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group18 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group19 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}} |group20 = {{Expansion depth limit exceeded|
{{{Expansion depth limit exceeded}}}
}}

|list1 = |list2 = |list3 = |list4 = |list5 = |list6 = |list7 = |list8 = |list9 = |list10 = |list11 = |list12 = |list13 = |list14 = |list15 = |list16 = |list17 = |list18 = |list19 = |list20 =

|style = |imageleftstyle = |imagestyle = |titlestyle = |basestyle = |abovestyle = |belowstyle = |groupstyle = padding-left:0em;padding-right:0em; |liststyle = |evenstyle = |oddstyle =

|group1style = |group2style = |group3style = |group4style = |group5style = |group6style = |group7style = |group8style = |group9style = |group10style = |group11style = |group12style = |group13style = |group14style = |group15style = |group16style = |group17style = |group18style = |group19style = |group20style =

|list1style = |list2style = |list3style = |list4style = |list5style = |list6style = |list7style = |list8style = |list9style = |list10style = |list11style = |list12style = |list13style = |list14style = |list15style = |list16style = |list17style = |list18style = |list19style = |list20style =

|{{Expansion depth limit exceeded|evenodd|void}} = |{{Expansion depth limit exceeded|listpadding|void}} =

}}
Anti-spam
Spamdexing
Internet fraud

If you like SEOmastering Site, you can support it by - BTC: bc1qppjcl3c2cyjazy6lepmrv3fh6ke9mxs7zpfky0 , TRC20 and more...

→

Retrieved from "https://www.seomastering.com:443/w/index.php?title=DNSWL&oldid=1002"