November 2005
Beginner to intermediate
528 pages
24h 11m
English
Content preview from Mac OS X Tiger in a NutshellBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Mail Delivery Agents
Most email users don’t read mail directly from their mailhosts; instead, they download their mail from the host to their personal computers. A daemon running on the mailhost called a Mail Delivery Agent (MDA) facilitates this by supporting a mail-delivery protocol, and individual mail clients (Apple’s Mail, for example) connect to this service to check for and download new messages.
The two most common MDA protocols are the Post Office Protocol (POP) and the Internet Message Access Protocol (IMAP). POP, the older and more commonly supported of the two, comprises a very simple command set, allowing users to do little besides download their mail and delete it from the server. IMAP represents a newer and more sophisticated protocol that lets users store and organize all their mail on the server-side. This offers much greater convenience to users, but at the cost of more server resources; consider using the quota command (see Chapter 2) to set users’ storage capacities if you support IMAP.
Unfortunately, Mac OS X ships with neither popd nor imapd, the daemons that give you POP and IMAP services , respectively. You can cover both these bases by installing the UW IMAP server, available as a source code tarball (http://www.washington.edu/imap/).
If you would like to forgo compiling UW IMAP altogether, a shareware utility exists that provides a simple GUI interface allowing you to easily enable Postfix as well as the UW IMAP and POP services . Postfix Enabler is available ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.