Mercurial > dovecot > original-hg > dovecot-1.2
diff README @ 0:3b1985cbc908 HEAD
Initial revision
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Fri, 09 Aug 2002 12:15:38 +0300 |
parents | |
children | 58899a413569 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/README Fri Aug 09 12:15:38 2002 +0300 @@ -0,0 +1,86 @@ + + * Alpha release + +This release has not been extensively tested, I don't recommend putting it +into production usage yet. All the IMAP4rev1 features are fully supported, +except custom message flags still need to be implemented. There's several +minor problems left, see TODO file. + + * Mail storages + +Maildir is the preferred storage with most robust implementation. mbox +support is available but currently it relies a little bit on good luck, I +made it mostly for personal use and I strongly recommend using maildir if +at all possible. + +Maildir folders are done like with courier. INBOX is the ~/Maildir +directory, all the other folders named as ".<folder>.<subfolder>.<etc>" +under it, any directories not starting with a dot are simply ignored. +Deleting folders is made atomic by renaming them as "..<folder name>" and +deleting the directory after that. So, all directories beginning with ".." +are deleted whenever they're noticed. Indexes are stored into each folder's +root directory. + +mbox storage currently requires that all mail is in user-writable +directory, eg. ~/mail. Especially using /var/mail/user is NOT supported. +You may however create a ~/mail/inbox hardlink (or symlink if not chrooted) +to pointing to /var/mail/user. All files in the mail directory are +considered as mailboxes. Directories specify subfolders in IMAP. "inbox" +file specifies the INBOX folder and can not be named otherwise. Indexes are +stored into ".imap/<mailbox name>/" directories. + +imap process detects the storage from MAIL-environment which is preferred +to be in format "<storage>:<data>", for example "maildir:~/Maildir". It's +anyway allowed to be in pretty much any format as long as some of the +storages recognizes it as a valid data, so for example "MAIL=~/mail" is +first checked by maildir storage to see if it's valid maildir and +mbox storage after that. + +If the MAIL environment isn't given at all, all the storages are gone +through which try to find a valid directory for themselves to use. Also as +a special case, if MAILDIR environment exists, maildir storage is used with +the directory specified in it. + +Maildir storage is autodetected by checking if <directory>/cur/ exists and +we have rwx access to it. If directory isn't known, / and ~/Maildir are +checked. / is checked because we could be chrooted. + +mbox storage is autodetected by checking if .imap/ (+rwx), inbox (+rw) or +mbox (+rw) exists in directory. If directory isn't known, / is tried first. +After that, ~/mail and ~/Mail directories are used if they're found without +checking if they even contain any files. + + * Code + +The code is split into a several libraries and binaries: + + src/master - imap-master binary (see docs/design.txt) + src/login - imap-login binary + src/auth - imap-auth binary + src/imap - imap binary + + src/lib - Generic library functions + src/lib-mail - RFC-822 and MIME parsering code + src/lib-imap - IMAP-specific functions for parsing, sending, etc. + src/lib-index - Mailbox indexing library, slightly IMAP-specific + src/lib-storage - Mail storage separated into interface and implementation. + imap binary uses only the interface so it's possible to + add support for any kind of mail storage (eg. SQL). + + * RFCs conformed + +822 - Standard for ARPA Internet Text Messages +2822 - Internet Message Format (updated rfc822) +2045..2049 - Multipurpose Internet Mail Extensions (MIME) + +2060 - IMAP4rev1 +2180 - IMAP4 Multi-Accessed Mailbox Practice + +2595 - Using TLS with IMAP, POP3 and ACAP +2831 - Using Digest Authentication as a SASL Mechanism (DIGEST-MD5) + +rfc2831 + + * Contact info + +Timo Sirainen <tss@iki.fi>, http://dovecot.procontrol.fi/