{"id":1569,"date":"2010-05-31T06:36:39","date_gmt":"2010-05-31T04:36:39","guid":{"rendered":"http:\/\/www.collet-matrat.com\/?p=1569"},"modified":"2010-05-31T06:53:49","modified_gmt":"2010-05-31T04:53:49","slug":"spam-test-les-resultats-apres-une-annee","status":"publish","type":"post","link":"https:\/\/www.collet-matrat.com\/?p=1569","title":{"rendered":"Spam Test &#8230; Les r\u00e9sultats apr\u00e8s une ann\u00e9e."},"content":{"rendered":"<p style=\"text-align: center;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1119 aligncenter\" title=\"spam\" src=\"https:\/\/i0.wp.com\/www.collet-matrat.com\/wp-content\/uploads\/2009\/04\/spam.jpg?resize=469%2C321\" alt=\"\" width=\"469\" height=\"321\" srcset=\"https:\/\/i0.wp.com\/www.collet-matrat.com\/wp-content\/uploads\/2009\/04\/spam.jpg?w=469&amp;ssl=1 469w, https:\/\/i0.wp.com\/www.collet-matrat.com\/wp-content\/uploads\/2009\/04\/spam.jpg?resize=300%2C205&amp;ssl=1 300w\" sizes=\"auto, (max-width: 469px) 100vw, 469px\" \/><\/p>\n<p style=\"text-align: justify;\">Durant  le mois d'avril 2009 (il y a exactement 413 jours) je lan\u00e7ais une petite  exp\u00e9rience visant \u00e0 v\u00e9rifier dans quelles conditions une adresses e mail  mentionn\u00e9e (en clair) sur un site web \u00e9tait utilis\u00e9e par les spammeurs.  Je ne vais pas vous expliquer \u00e0 nouveau les conditions de cette  exp\u00e9rimentation, ceux qui n'ont pas suivi le premier \u00e9pisode peuvent  aller faire un petit tour <a href=\"http:\/\/www.collet-matrat.com\/?p=1118\" target=\"_blank\">ICI<\/a>.<\/p>\n<p>Apr\u00e8s une ann\u00e9e d'exp\u00e9rimentation, les r\u00e9sultats sont les suivants :<\/p>\n<p>Pour  l'adresse <strong>n'\u00e9tant pas prot\u00e9g\u00e9e par greylisting<\/strong> (uniquement SpamAssassin)  :<\/p>\n<ul>\n<li>nombre  total de spams re\u00e7us durant la p\u00e9riode : <strong>1 942<br \/>\n<\/strong><\/li>\n<li>nombre  de spam \/ jour (moyenne) : <strong>4,7<\/strong><\/li>\n<li>nombre  de spams d\u00e9tect\u00e9s par \"SpamAssassin\" : <strong>1 861<br \/>\n<\/strong><\/li>\n<li>taux  de d\u00e9tection des spams par \"SpamAssassin\" : <strong>96%<\/strong><\/li>\n<li>nombre  de spams non d\u00e9tect\u00e9s : <strong>81<\/strong><\/li>\n<\/ul>\n<p>Pour  l'adresse <strong>prot\u00e9g\u00e9e par greylisting<\/strong> (SpamAssassin + Postgrey) :<\/p>\n<ul>\n<li>nombre total de spams re\u00e7us durant la p\u00e9riode : <strong>298<\/strong><\/li>\n<li>nombre de spam \/ jour (moyenne) : <strong>0,72<\/strong><\/li>\n<li>nombre de spams d\u00e9tect\u00e9s par \"SpamAssassin\" : <strong>207<\/strong><\/li>\n<li>taux de d\u00e9tection des spams par \"SpamAssassin\" : <strong>69%<\/strong><\/li>\n<li>nombre de spams non d\u00e9tect\u00e9s : <strong>91<\/strong><\/li>\n<\/ul>\n<p style=\"text-align: justify;\">On peut donc en conclure qu'une adresse e mail utilis\u00e9e \"en clair\" sur une page web est assez rapidement victime de spam (on s'en doutait un peu ...). Heureusement, les outils disponibles (<a href=\"http:\/\/spamassassin.apache.org\/\" target=\"_blank\">SpamAssassin<\/a> et <a href=\"http:\/\/postgrey.schweikert.ch\/\" target=\"_blank\">Postgrey<\/a> dans mon cas) remplissent bien leur mission (96% de taux de d\u00e9tection pour Spamassassin). La technique du \"greylisting\" est quand \u00e0 elle particuli\u00e8rement utile, surtout pour les administrateurs car elle permet de diminuer, d'une mani\u00e8re significative, la charge des serveurs de messagerie !<\/p>\n<p><em>Photo : <a href=\"http:\/\/www.flickr.com\/photos\/yogma\/\" target=\"_blank\">Yogma<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Durant le mois d'avril 2009 (il y a exactement 413 jours) je lan\u00e7ais une petite exp\u00e9rience visant \u00e0 v\u00e9rifier dans quelles conditions une adresses e mail mentionn\u00e9e (en clair) sur un site web \u00e9tait utilis\u00e9e par les spammeurs. Je ne &hellip; <a href=\"https:\/\/www.collet-matrat.com\/?p=1569\">Lire la suite <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[109,86],"tags":[],"class_list":["post-1569","post","type-post","status-publish","format-standard","hentry","category-email","category-securite"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=\/wp\/v2\/posts\/1569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1569"}],"version-history":[{"count":8,"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=\/wp\/v2\/posts\/1569\/revisions"}],"predecessor-version":[{"id":1600,"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=\/wp\/v2\/posts\/1569\/revisions\/1600"}],"wp:attachment":[{"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.collet-matrat.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}