{"id":41975,"date":"2017-09-13T00:00:00","date_gmt":"2017-09-12T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/zashhita-pochtovogo-smtp-servera"},"modified":"2020-02-18T13:44:45","modified_gmt":"2020-02-18T10:44:45","slug":"zashhita-pochtovogo-smtp-servera","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/zashhita-ot-ddos-atak\/zashhita-pochtovogo-smtp-servera","title":{"rendered":"Protection du serveur SMTP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Chaque utilisateur actif d'Internet a \u00e9t\u00e9 confront\u00e9 au probl\u00e8me du spam dans sa bo\u00eete mail. Pour les grandes entreprises, ce probl\u00e8me est encore plus pertinent. En raison de la quantit\u00e9 de spam envoy\u00e9e \u00e0 leurs bo\u00eetes mail officielles, il est fr\u00e9quent de manquer une offre commerciale int\u00e9ressante, une r\u00e9ponse d'un partenaire potentiel ou un CV d'un candidat prometteur.<\/p>\n<p>Selon les estimations les plus modestes, la part de spam dans le trafic postal mondial d\u00e9passe la moiti\u00e9. Les employ\u00e9s, recevant plusieurs courriers professionnels par jour, suppriment quotidiennement plusieurs centaines de messages spam de leur bo\u00eete mail. Chaque mois, plusieurs heures de temps de travail sont consacr\u00e9es \u00e0 lutter contre le spam. De plus, une mauvaise configuration de la protection contre le spam peut conduire \u00e0 ce que des bons messages soient envoy\u00e9s dans le dossier \u00ab<strong>Spam<\/strong>\u00bb.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/prohoster.info\/wp-content\/uploads\/2017\/09\/zashchita-pochtovogo-smtp-servera.png\" alt=\"\" width=\"596\" height=\"562\" class=\"aligncenter size-full wp-image-5180\" \/><\/p>\n<p>La protection du serveur mail est n\u00e9cessaire contre ces types d'attaques, et les moyens de protection <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/\"   title=\"serveurs\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1373\">serveurs<\/a>:<\/p>\n<ul style=\"list-style-image: url(https:\/\/prohoster.info\/wp-content\/uploads\/check\/check_server.png);\">\n<li><strong>Attaque DDoS.<\/strong> Un grand volume de trafic ou de messages est envoy\u00e9 au serveur mail, ce qui le rend incapable de fonctionner. Un serveur surcharg\u00e9 peut \u00eatre soit pirat\u00e9, soit cette attaque peut \u00eatre utilis\u00e9e comme une man\u0153uvre distractive.<\/li>\n<li><strong>Spam.<\/strong> Le spam d\u00e9signe des messages non sollicit\u00e9s dans les courriers \u00e9lectroniques. Il peut \u00eatre de deux types : commercial et non commercial. Le premier type de spam peut m\u00eame \u00eatre b\u00e9n\u00e9fique pour une entreprise, car il peut contenir des offres int\u00e9ressantes. Le second type de spam concerne la publicit\u00e9 de sites de rencontres, de sites pour adultes, les lettres nig\u00e9rianes, la pseudo-charit\u00e9, le spam politique, les lettres de bonheur et le spam viral. La filtration du spam peut \u00eatre automatique ou manuelle. Lors de la filtrage automatique, des filtres anti-spam sont utilis\u00e9s sur <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/dts-dronten\/\"   title=\"le serveur\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2510\">le serveur<\/a>, ou le corps du message est analys\u00e9. Lors de la m\u00e9thode manuelle, l'utilisateur d\u00e9finit lui-m\u00eame des mots-cl\u00e9s bloquants pour filtrer le spam. Ces m\u00e9thodes permettent d'\u00e9liminer 97 % du spam, laissant passer uniquement les nouvelles et les plus cr\u00e9atives tentatives de contournement.<\/li>\n<li><strong>Phishing.<\/strong> Une infection de l'ordinateur par un cheval de Troie. Ce cheval de Troie collecte les identifiants, mots de passe, num\u00e9ros de cartes bancaires des utilisateurs et les transmet \u00e0 des tiers. Il s'agit g\u00e9n\u00e9ralement d'un message contenant un programme malveillant ou un lien vers un site nuisible. Malheureusement, 90 % des entreprises ne pr\u00eatent pas suffisamment attention \u00e0 cette menace et ne mettent pas \u00e0 jour leurs logiciels.<\/li>\n<\/ul>\n<p>Dans <strong>protection du serveur SMTP de messagerie.<\/strong> inclut des listes noires et grises, l'analyse des pi\u00e8ces jointes, des en-t\u00eates, la protection contre la collecte d'adresses. De plus, un algorithme de v\u00e9rification de masse, am\u00e9lior\u00e9 d'ann\u00e9e en ann\u00e9e, est utilis\u00e9 \u00e0 la place des m\u00e9thodes de spam. Un bon syst\u00e8me de protection de serveur de messagerie peut traiter des centaines de courriels par seconde sans augmenter de mani\u00e8re significative la charge sur le r\u00e9seau.<\/p>\n<p>Dans 90 % des cas, les virus, les enregistreurs de frappe et les chevaux de Troie p\u00e9n\u00e8trent dans un r\u00e9seau informatique par le biais de courriels. <strong>La soci\u00e9t\u00e9 d'h\u00e9bergement ProHoster<\/strong> propose de prot\u00e9ger vos comptes de messagerie professionnels contre un oc\u00e9an de spam et de virus. Nous v\u00e9rifierons tous les courriels entrants \u00e0 l'aide d'un filtre intelligent pour r\u00e9duire le trafic.<\/p>\n<p>Pour plus de d\u00e9tails, veuillez contacter notre support technique. <a rel=\"nofollow\" href=\"\/fr\/zhashchita-ot-ddos\/\">Contactez-nous d\u00e8s aujourd'hui<\/a> \u2013 assurez une protection fiable de vos comptes de messagerie.<\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0430\u0436\u0434\u044b\u0439 \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430 \u0441\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u043b\u0441\u044f \u0441 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043e\u0439 \u0441\u043f\u0430\u043c\u0430 \u0432 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u043c \u044f\u0449\u0438\u043a\u0435. \u0414\u043b\u044f \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 \u044d\u0442\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0435\u0449\u0451 \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u0435\u0435. \u0418\u0437-\u0437\u0430 \u043c\u043e\u0440\u044f \u0441\u043f\u0430\u043c\u0430, \u043f\u0440\u0438\u0445\u043e\u0434\u044f\u0449\u0435\u0433\u043e \u043d\u0430 \u0438\u0445 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0435 \u044f\u0449\u0438\u043a\u0438, \u0447\u0430\u0441\u0442\u043e \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u043e\u043f\u0443\u0441\u0442\u0438\u0442\u044c \u0432\u044b\u0433\u043e\u0434\u043d\u043e\u0435 \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u043e\u0435 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u0435, \u043e\u0442\u0432\u0435\u0442 \u043e\u0442 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0430\u0440\u0442\u043d\u0451\u0440\u0430 \u0438\u043b\u0438 \u0440\u0435\u0437\u044e\u043c\u0435 \u043e\u0442 \u043f\u0435\u0440\u0441\u043f\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0441\u043e\u0438\u0441\u043a\u0430\u0442\u0435\u043b\u044f. \u041f\u043e \u0441\u0430\u043c\u044b\u043c \u0441\u043a\u0440\u043e\u043c\u043d\u044b\u043c \u043e\u0446\u0435\u043d\u043a\u0430\u043c, \u0434\u043e\u043b\u044f \u0441\u043f\u0430\u043c\u0430 \u0432 \u043c\u0438\u0440\u043e\u0432\u043e\u043c \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u043c \u0442\u0440\u0430\u0444\u0438\u043a\u0435 \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u0435\u0442 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u0443. \u0421\u043e\u0442\u0440\u0443\u0434\u043d\u0438\u043a\u0438, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":41976,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[698],"tags":[],"class_list":["post-41975","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zashhita-ot-ddos-atak"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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