Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sieve is a programming language that can be used to create filters for email. It owes its creation to the CMU Cyrus Project, creators of Cyrus IMAP server. The language is not tied to any particular operating system or mail architecture. It requires the use of RFC 2822-compliant messages, but otherwise should generalize to other systems that meet these criteria. Sieve's base specification is outlined in RFC 5228, published in January 2008. Sieve differs from traditional programming languages in that it is highly limited - the base standard has no variables, and no loops, preventing runaway programs and limiting the language to simple filtering operations. Although extensions have been devised to extend the language to include variables and, to a limited degree, loops, the language is still highly restricted, and thus suitable for running user-devised programs as part of the mail system.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.