{"id":1727,"date":"2017-04-20T12:26:54","date_gmt":"2017-04-20T11:26:54","guid":{"rendered":"http:\/\/michauko.org\/blog\/?p=1727"},"modified":"2017-04-20T12:26:54","modified_gmt":"2017-04-20T11:26:54","slug":"postgrey-delais-infernaux-outlook-gmail-parfois","status":"publish","type":"post","link":"https:\/\/michauko.org\/blog\/postgrey-delais-infernaux-outlook-gmail-parfois-1727\/","title":{"rendered":"postgrey et des d\u00e9lais infernaux avec outlook et gmail – parfois"},"content":{"rendered":"

\"\"Il se passe parfois un truc p\u00e9nible avec les serveurs d’envoi de Google et Microsoft, lorsque vous avez mis en place du greylisting, c’est que lorsque l’exp\u00e9diteur renvoie, il renvoie depuis un autre serveur. Donc \u00e7a d\u00e9clenche une nouvelle temporisation de greylisting car c’est un nouveau triplet exp\u00e9diteur\/destinataire\/ip(? pour le 3\u00e8 param ? je sais plus). Bref, le mail entrant peut \u00eatre refoul\u00e9 un paquet de fois avant d’arriver pour de bon, tant leurs serveurs d’envois sont nombreux.<\/p>\n

Pour \u00e9viter \u00e7a, un whitelist au niveau greylisting uniquement s’av\u00e8re indispensable. M\u00eame si le mail envoy\u00e9 est du spam, de toute mani\u00e8re il arrive avec la b\u00e9n\u00e9diction d’un serveur gmail\/microsoft, donc il *finira* par rentrer et c’est l’analyse de contenu \u00e9ventuellement qui dira si c’est du spam.<\/p>\n

Pour ceci, on cr\u00e9e un fichier \/etc\/postgrey\/whitelist_clients.local<\/code> (.local car il perdura avec les upgrades de paquets) et contenant :<\/p>\n

\/^mail-.*\\.outbound\\.protection\\.outlook\\.com$\/\r\n\/^mail-.*\\.google\\.com$\/\r\n\/^.*\\.amazonses\\.com$\/<\/pre>\n
Pour la 3\u00e8 ligne, c’est vous qui voyez, mais j’ai eu le souci avec Amazon, quoique les nuages Amazon soient aussi plus souvent utilis\u00e9s pour du spam.
\nLa liste de base de \/etc\/postgrey\/whitelist_clients<\/code> ne me plait pas trop. Sinon on pourrait la compl\u00e9ter et attention aux upgrades.<\/p>\n
Ensuite, on indique \u00e0 postgrey d’en tenir compte (je crois qu’on pr\u00e9cise un fichier uniquement, \u00e7a ne vient pas en plus du whitelist_clients de base – \u00e0 confirmer), en modifiant \/etc\/default\/postgrey<\/code><\/p>\n
POSTGREY_OPTS=\"--inet=10023 --whitelist-clients=\/etc\/postgrey\/whitelist_clients.local --auto-whitelist-clients=2\"<\/pre>\n
Le param\u00e8tre AWL \u00e9gal \u00e0 2 vaut normalement 5 et indique au bout de combien de mails accept\u00e9s on auto-whitelist cet exp\u00e9diteur+serveur.<\/p>\n","protected":false},"excerpt":{"rendered":"
Il se passe parfois un truc p\u00e9nible avec les serveurs d’envoi de Google et Microsoft, lorsque vous avez mis en place du greylisting, c’est que lorsque l’exp\u00e9diteur renvoie, il renvoie depuis un autre serveur. Donc …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2,385],"tags":[583,581,582,229,579,189,580,360],"class_list":["post-1727","post","type-post","status-publish","format-standard","hentry","category-debian","category-mails","tag-amazon","tag-gmail","tag-gmail-com","tag-google","tag-hotmail","tag-microsoft","tag-outlook-com","tag-postgrey"],"yoast_head":"\npostgrey et des d\u00e9lais infernaux avec outlook et gmail - parfois - Le blog de Michauko<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/michauko.org\/blog\/postgrey-delais-infernaux-outlook-gmail-parfois-1727\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"postgrey et des d\u00e9lais infernaux avec outlook et gmail - parfois - Le blog de Michauko\" \/>\n<meta property=\"og:description\" content=\"Il se passe parfois un truc p\u00e9nible avec les serveurs d’envoi de Google et Microsoft, lorsque vous avez mis en place du greylisting, c’est que lorsque l’exp\u00e9diteur renvoie, il renvoie depuis un autre serveur. 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