メモ
http://acapulco.dyndns.org/pukiwiki/pukiwiki.php?Courier-imap
http://solaris.bluecoara.net/servers/courier-imap/imap1.phtml
http://mail.courier-users.jp/lists/public/
http://b2search.tietew.net/archive/becky-ml/18461
http://www.koka-in.org/~bg66/blog/archives/cat_debian.html
http://www.tugumi.net/tips/imap/
どれが正しい手順なのか謎は深まるばかりだ..