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Sun™ ONE Messaging Server: Practices and Techniques for Enterprise Customers by Dave Pickens

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Sendmail (UNIX Mail)

Sendmail is an MTA. It does not specifically provide methods for mail storage or retrieval (reading mail). However, it is often configured to use /var/mail type storage. Then additional programs such as the Washington University IMAP server (WashU IMAP) or Carnegie Mellon University's Cyrus POP server are added so users can retrieve their mail from /var/mail. This section deals with this specific type of generic configuration most often found when dealing with sendmail.

As stated previously, Sendmail is an MTA and as such much of the work is done at the MTA converting aliases, rules, and so forth. Converting users (see “User Information” on page 174) and /var/mail mailbox content (see“Mailbox Content” on page 175) is fairly ...

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