Information science Practical e-mail technology textbook From Basic Mechanisms to Protocol Server Construction, Sending Domain Authentication, Attached Files, Encryption, and Security Measures / Toshikatsu Mashii

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Information Science
E-mail technology that system administrators and developers want to know [Features of this book] ・ Easy to understand mechanisms that are difficult to understand with a wealth of illustrations ・ By learning about e-mail technology, it is easy to understand the mechanisms of "server construction," "DNS" and "security" ・ It covers the knowledge that can be used in the practical work of system development and operation. One book is safe! [Contents of this book] E-mail with the impression that it is being pushed by SNS and messaging applications. However, e-mail is necessary for creating accounts for most SNS and Web services. In the business scene, there are still many people who contact by e-mail. In other words, e-mail is an essential infrastructure for the development and operation of systems and services. However, e-mail is still an indispensable infrastructure for the development and operation of systems and services. As a result, e-mail technology in general has almost disappeared. As a result, in the actual situation, e-mail technology in general technology in general is in a state of "walking on a tightrope" and "overcoming the situation" by researching only the necessary knowledge on the Internet and asking senior people. In such a situation, e-mail technology in general is in a state of "walking on a tightrope". As a result, there remains anxiety about the development and operation of systems and services. time of trouble of failures and other problems may be difficult. In addition, e-mail cannot be neglected from a security perspective in recent years. This book systematically organizes and explains the history of e-mail technology, procedures for constructing e-mail servers, and initiatives to prevent spam e-mails. It is useful for engineers who construct e-mail servers, administrators who distribute and manage e-mail magazines, as well as Bayesian Filters APOP, SSL/TLS, DNSSEC, opt-in, opt-out. etc. Domain, DNS, SMTP, POP, IMAP, mbox, Maildir, SASL, relay host, registry, server migration, outgoing e-mail capacity restrictions, retransmission and congestion, character codes, MIME, PPAP, open confirmation, outgoing domain authentication, Bayesian Filters APOP, SSL/TLS, DNSSEC, opt-in, opt-out. etc. Domain, DNS, SMTP, POP, IMAP, mbox, Maildir, SASL, relay host, registry, server migration, outgoing e-mail capacity restrictions, retransmission and congestion, character codes, MIME, PPAP, open confirmation, outgoing domain authentication