A company's mail server suddenly appears on spam blacklists. Logs show it accepting and forwarding mail from unknown internet hosts to outside addresses. What is the misconfiguration?
Le serveur de messagerie d'une entreprise apparaît soudain sur des listes noires anti-spam. Les journaux montrent qu'il accepte et transfère du courrier provenant d'hôtes Internet inconnus vers des adresses extérieures. Quelle est l'erreur de configuration ?
Answers
AIts MX record has been given too low a prioritySon enregistrement MX a reçu une priorité trop basse
BPort 587 has been closed on the company's own firewallLe port 587 a été fermé sur le pare-feu de l'entreprise
CIt is an open relay that forwards mail for anyoneC'est un relais ouvert qui transfère le courrier de n'importe qui
DPOP3 access has been left enabled for the staffL'accès POP3 a été laissé activé pour le personnel
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