{"id":5266,"date":"2025-12-19T17:22:52","date_gmt":"2025-12-19T17:22:52","guid":{"rendered":"https:\/\/mgcomdev.wpenginepowered.com\/glossary\/plateforme-messagerie\/"},"modified":"2026-09-09T09:05:12","modified_gmt":"2026-09-09T09:05:12","slug":"passerelle-email","status":"publish","type":"glossary","link":"https:\/\/www.mailgun.com\/fr\/glossaire\/passerelle-email\/","title":{"rendered":"Passerelle email"},"content":{"rendered":"<h1>Passerelle email<\/h1>\n<p><span data-contrast=\"none\">Une passerelle email est un serveur ou un service qui agit comme un point de contr\u00f4le pour le trafic d&#8217;emails. Elle analyse et route tous les messages entrants et\/ou sortants entre un exp\u00e9diteur et un destinataire. Elle permet d&rsquo;appliquer les politiques de s\u00e9curit\u00e9, de conformit\u00e9 et de livraison avant que les messages n&rsquo;atteignent leur destination.<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">Il en existe deux types courants\u00a0:<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"78\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Les passerelles entrantes (utilis\u00e9es par les destinataires) filtrent les emails entrants pour bloquer le spam, l&rsquo;hame\u00e7onnage et les malwares avant qu&rsquo;ils n&rsquo;atteignent les bo\u00eetes de r\u00e9ception internes.<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"78\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Les passerelles sortantes (utilis\u00e9es par les exp\u00e9diteurs) surveillent et routent les emails sortants, en ajoutant souvent des en-t\u00eates, en appliquant l&rsquo;authentification ou en consignant l&rsquo;activit\u00e9.<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"none\">Les passerelles email sont couramment utilis\u00e9es dans les environnements d&rsquo;entreprise et incluent souvent des fonctionnalit\u00e9s de s\u00e9curit\u00e9 avanc\u00e9es telles que la DLP (pr\u00e9vention des pertes de donn\u00e9es), la r\u00e9\u00e9criture de liens et le sandboxing des pi\u00e8ces jointes.<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">De nombreux exp\u00e9diteurs Mailgun livrent des emails \u00e0 des destinataires prot\u00e9g\u00e9s par des passerelles entrantes tierces telles que Proofpoint, Mimecast, Barracuda ou la couche de s\u00e9curit\u00e9 Enterprise de Google. Ces passerelles appliquent souvent un filtrage plus strict que les bo\u00eetes de r\u00e9ception grand public et peuvent bloquer les messages qui\u00a0:<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"79\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">\u00c9chouent \u00e0 l&rsquo;alignement SPF, DKIM ou DMARC<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"79\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Semblent suspects en raison d&rsquo;en-t\u00eates mal form\u00e9s ou d&rsquo;une mauvaise hygi\u00e8ne HTML<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"79\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Incluent des liens ou des pi\u00e8ces jointes signal\u00e9s par les bases de donn\u00e9es de r\u00e9putation<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"79\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Proviennent d&rsquo;adresses IP ou de domaines ayant un historique limit\u00e9 ou une r\u00e9putation douteuse<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"none\">Comprendre le fonctionnement des passerelles et examiner les r\u00e9ponses de rebond et les r\u00e8gles de filtrage peut aider \u00e0 r\u00e9soudre les probl\u00e8mes de livraison. En cas de doute, analysez les en-t\u00eates et les messages de rejet pour d\u00e9terminer quelle passerelle a pris la d\u00e9cision.<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Passerelle email Une passerelle email est un serveur ou un service qui agit comme un point de contr\u00f4le pour le trafic d&#8217;emails. Elle analyse et route tous les messages entrants et\/ou sortants entre un exp\u00e9diteur et un destinataire. Elle permet d&rsquo;appliquer les politiques de s\u00e9curit\u00e9, de conformit\u00e9 et de livraison avant que les messages n&rsquo;atteignent [&hellip;]<\/p>\n","protected":false},"author":1,"template":"","meta":{"_acf_changed":false},"class_list":["post-5266","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Passerelle email \u2013 Glossaire des termes d&#039;email | Mailgun<\/title>\n<meta name=\"description\" content=\"Les passerelles email sont essentielles pour votre infrastructure email et assurent la s\u00e9curit\u00e9 de vos serveurs internes. 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