PUBLIC MARKS from camel with tags mail & dns

L'acheminement des e-mails permet aux administrateurs de spécifier les règles de distribution du courrier entrant. La mise à jour des paramètres DNS de votre domaine peut avoir un impact sur la distribution des messages des utilisateurs. C'est pourquoi l'acheminement des e-mails vous donne plus de flexibilité pour la distribution des messages adressés à votre domaine. Vous pouvez activer l'acheminement des e-mails sur l'ensemble de votre domaine ou seulement pour certains comptes d'utilisateurs.

Domains use public records (DNS) to direct requests for different services (web, email, etc.) to the machines that perform those services. All domains already publish email (MX) records to tell the world what machines receive mail for the domain. SPF works by domains publishing "reverse MX" records to tell the world what machines send mail from the domain. When receiving a message from a domain, the recipient can check those records to make sure mail is coming from where it should be coming from. With SPF, those "reverse MX" records are easy to publish: one line in DNS is all it takes.

This tutorial shows how to set up a Debian Etch (Debian 4.0) based server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of Debian Etch, but should apply to the 64-bit version with very little modifications as well.