{"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\/it\/blog\/zashhita-ot-ddos-atak\/zashhita-pochtovogo-smtp-servera","title":{"rendered":"Protezione del server SMTP di posta elettronica","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ogni utente di Internet ha affrontato il problema dello spam nella propria casella di posta. Per le grandi aziende, questo problema \u00e8 ancora pi\u00f9 rilevante. A causa del mare di spam che arriva nelle loro caselle ufficiali, spesso si rischia di perdere un\u2019offerta commerciale vantaggiosa, una risposta da un potenziale partner o un curriculum da un candidato promettente.<\/p>\n<p>Secondo le stime pi\u00f9 conservative, la quota di spam nel traffico postale mondiale supera la met\u00e0. I dipendenti, ricevendo ogni giorno diverse email di lavoro, cancellano diverse centinaia di messaggi spam quotidianamente. Ogni mese, diverse ore di lavoro vengono spese per combattere lo spam. Una configurazione errata della protezione dallo spam pu\u00f2 portare al fatto che nella cartella \u00ab<strong>Spam<\/strong>\u00bb possano finire email legittime.<\/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 protezione del server di posta \u00e8 necessaria contro tali tipi di attacchi, i mezzi di protezione <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1373\">server<\/a>:<\/p>\n<ul style=\"list-style-image: url(https:\/\/prohoster.info\/wp-content\/uploads\/check\/check_server.png);\">\n<li><strong>DDoS.<\/strong> Un grande flusso di traffico o di email viene inviato al server di posta, causando il suo sovraccarico. Un server sovraccarico pu\u00f2 essere hackerato o questa attacco pu\u00f2 essere utilizzato come manovra di distrazione.<\/li>\n<li><strong>Spam.<\/strong> Lo spam sono messaggi di posta indesiderati. Pu\u00f2 essere di due tipi: commerciale e non commerciale. Se il primo tipo di spam pu\u00f2 rivelarsi utile per l'azienda, poich\u00e9 offre proposte interessanti, il secondo tipo comprende la pubblicit\u00e0 di siti di incontri, siti pornografici, lettere nigere, pseudo-beneficenza, spam politico, lettere della fortuna e spam virale. La filtrazione dello spam pu\u00f2 essere automatica o manuale. Nel filtraggio automatico si utilizzano filtri antispam o si analizza il contenuto della mail. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-dronten\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2510\">server<\/a>Nel filtraggio manuale, l'utente imposta le parole chiave bannate, a cui si attene per escludere lo spam. Questi metodi consentono di eliminare il 97% dello spam, lasciando solo i metodi pi\u00f9 recenti e creativi per aggirare i blocchi.<\/li>\n<li><strong>Phishing.<\/strong> Infezione del computer tramite un trojan. Questo trojan raccoglie nomi utente, password e numeri di carte di credito degli utenti e li trasmette a terze parti. Di solito si tratta di un'email contenente un programma allegato o un link a un sito pericoloso. Purtroppo, il 90% delle aziende non presta la dovuta attenzione a questa minaccia e non aggiorna il proprio software.<\/li>\n<\/ul>\n<p>In <strong>protezione del server SMTP<\/strong> include liste nere e grigie, analisi degli allegati, intestazioni, protezione dalla raccolta di indirizzi. Inoltre, viene utilizzato un algoritmo di verifica della massicit\u00e0, che viene migliorato di anno in anno, invece delle tecniche di spam. Un buon sistema di protezione del server di posta \u00e8 in grado di gestire centinaia di email al secondo senza un aumento significativo del carico sulla rete.<\/p>\n<p>Nel 90% dei casi, virus, keylogger e trojan penetrano nella rete informatica proprio attraverso l'email. <strong>L'azienda di hosting ProHoster<\/strong> offre di proteggere le vostre caselle di posta aziendali da un mare di spam e virus. Controlliamo tutte le email in arrivo tramite un filtro intelligente per ridurre il traffico.<\/p>\n<p>Tutti i dettagli possono essere richiesti al nostro supporto tecnico. <a rel=\"nofollow\" href=\"\/it\/zhashchita-ot-ddos\/\">Contattateci gi\u00e0 oggi<\/a> \u2013 garantite una protezione affidabile delle vostre caselle di posta.<\/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 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