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Topic: Maildir

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	Maildir - Wikipedia, the free encyclopedia
		Maildir is a format for an e-mail spool that does not require file locking to maintain message integrity because the messages are kept in separate files with unique names.
		The problem is that if the Maildir is modified at the same time as another process is getting the list of files in a maildir, some of the files may be skipped by readdir() call, which results as mails getting temporarily lost.
		The Maildir standard can not be implemented without modification on systems running Microsoft Windows, which does not tolerate the inclusion of colons in filenames.
	en.wikipedia.org /wiki/Maildir (402 words)

	maildir
		Maildirs may have maximum size quotas defined, but these quotas are purely voluntary.
		The maildir quota enhancement is designed to be used in certain situations where filesystem-based quotas cannot be used for some reason.
		Obviously something like that defeats the original purpose of using maildirs, therefore the voluntary quota mechanism does not use locking, and that's why the current recorded maildir size is always considered to be an estimate.
	www.courier-mta.org /maildir.html (1694 words)

	Maildir++
		Messages added to a maildir by a mail user agent that does not understand the quota extension will not be immediately counted towards the overall quota, and may not be counted for an extensive period of time.
		Maildir++ is a mail storage structure that's based on the Maildir structure, first used in the Qmail mail server.
		A Maildir++ enhancement is that a message can be moved between folders and/or the main Maildir simply by moving/renaming the file (into the cur subdirectory of the destination folder).
	www.inter7.com /courierimap/README.maildirquota.html (2700 words)

	http://www.courier-mta.org - Benchmarking mbox versus maildir
		Maildirs were originally implemented in the Qmail mail server, supposedly to address the inadequacies of mbox files.
		Maildirs will also do poorly with an inefficient filesystem that stores very large folders which are frequently searched for specific content.
		However maildirs' performance should be adequate even on slow machines with very large folders, as long as the mail activity is just occasional read/write access, and browsing.
	www.courier-mta.org /mbox-vs-maildir (3717 words)

	Manual Page - maildir.maildrop(5)
		The ‘‘,S=cnt’’ part optimizes Courier’s maildir quota enhancement; it allows the size of all the mail stored in the maildir to be added up without issuing the stat(2) system call for each individual message (this can be quite a performance drain with certain network filesystems).
		When opening a maildir or a maildir folder, read the tmp subdirectory and delete any files in there that are at least 36 hours old.
		A quota for an existing maildir is installed by running maildirmake with the -q option, and naming an existing maildir.
	manual.cream.org /index.cgi/usr/share/man/man5/maildir.maildrop.5 (1783 words)

	Qmail-maildir - QmailWiki
		Maildir is a lock-free mailbox standard which is reliable over NFS.
		Bloodhounds International wrote maildir patches for the c-client library (http://www.flounder.net/qmail) (now distributed by Adam McKenna), which is used by Pine and IMAP2.
		When exit codes are checked, as by qmail-local or fetchmail with -w option, it should be as reliable as qmail's own maildir delivery (which heavily influenced the safecat).
	www.qmailwiki.org /Qmail-maildir (719 words)

	Gnus Manual: Maildir
		Maildir format was designed to allow concurrent deliveries and reading, without needing locks.
		Each maildir will be represented in Gnus as a newsgroup on that server; the filename of the symlink will be the name of the group.
		The results might happen to be useful, but that would be by chance, not by design, and the results might be different in the future.
	www.gnus.org /manual/gnus_180.html (564 words)

	Qmail Help: What is maildir
		The ``,S=cnt'' part optimizes Courier's maildir quota enhancement; it allows the size of all the mail stored in the maildir to be added up without issuing the stat(2) system call for each individual message (this can be quite a performance drain with certain network filesys- tems).
		The deliverquota(8) command is a tiny application that delivers a single message to a maildir using the vol- untary quota protocol, and hopefully it can be used as a measure of last resort.
		This is a voluntary mechanism for enforcing "loose" quotas on the maxi- mum sizes of maildirs.
	qmail-support.blogspot.com /2005/05/what-is-maildir.html (1940 words)

	GLEP 32 -- Maildir Location
		When the mailbox is of a maildir type, there is no set standard what the name of the directory should be.
		The most popular extensions are "Maildir", ".Maildir" and Gentoo has adopted its own ".maildir" name.
		To provide the means to change the default location of a maildir, that is currently hardcoded in ebuilds.
	www.gentoo.org /proj/en/glep/glep-0032.html (267 words)

	[No title]
		The mail transport agent will try again later to deliver the message, but it is unacceptable that a corrupted message should show up at all.
		In contrast, in maildir, any delivered message can be safely updated or deleted by a mail-reading program.
		THE MAILDIR STRUCTURE A directory in maildir format has three subdirectories, all on the same filesystem: tmp, new, and cur.
	www.qmail.org /man/man5/maildir.html (745 words)

	[No title]
		An MUA doesn't have to worry about partially delivered mail: each message is safely written to disk in the tmp subdirectory before it is moved to new.
		Unless you're writing messages to a maildir, the format of a unique name is none of your business.
		When a maildir is shared through NFS, every machine that delivers to the maildir must have its own hostname.
	cr.yp.to /proto/maildir.html (712 words)

	MBOX to Maildir
		Another application which now uses maildir format is KMail and it also omits the leading dot.
		If you want KMail compatibility then the folder should be named "Mail" instead of "Maildir" and the mbox should be named "Inbox" instead of "mbox".
		At this point everything on the user side of things is converted to maildir.
	infrablue.tripod.com /maildir.html (445 words)

	[No title]
		This approach differs from older versions of similar patches, in that once a maildir patch was applied, it was assumed that all your folders would be created in the maildir format.
		This patch does not assume that maildir is a preferred format, instead puts maildir in equal footing with other formats (mbox, mbx, etc), and so a maildir folder in the mail/ collection is treated in the same way as any other folder in any other format.
		The main point of the maildir configuration is that you should never (read my lips) ever edit the message, but edit the filename associated to the message.
	www.math.temple.edu /doc/packages/pine/README.maildir (1698 words)

	Switching from MH and Evolution to maildir, Dovecot IMAP and Thunderbird ✏Copia (Site not responding. Last check: 2007-10-08)
		In the end I decided to switch to Maildir, which is like MH in its one-file-per-message philosophy, but seems to be supported by more modern MUAs.
		Also, some Maildir tools such as Mutt and Dovecot expect to see folders as hidden filees (with a leading dot).
		They indicate that the destination is a Maildir folder and so procmail does the right thing with it.
	copia.ogbuji.net /blog/2006-02-01/Switching_ (823 words)

	My first mutt : Mail storage (Site not responding. Last check: 2007-10-08)
		Maildir is a more recently devised folder format where each message is a separate file in a directory full of other messages.
		The advantages of Maildir are that no locking is required, so multiple applications can work on the same mailfolder at the same time without messing up.
		Folders with large individual messages; the time taken to open a Maildir is a function of the number of messages, whereas the time taken to open an mbox file is a function of it's total filesize.
	mutt.blackfish.org.uk /storage (1237 words)

	maildir and mbox - LinuxQuestions.org
		From what I've read, maildir are the way to go, but I am unsure of how to proceed.
		Maildir is considered by many to be a better system then mbox.
		Both of them support maildirs out of the box, plus they are more stable, more secure, and more feature rich then sendmail.
	www.linuxquestions.org /questions/showthread.php?t=132570 (330 words)

	The Maildir MH Project
		The maildir MH project aims to build a command-line email interface, similar to MH-mail, which use qmail maildirs as folders.
		Maildirs are absolutely reliable as email folders: messages can't get lost or corrupted when properly stored in maildirs.
		Ideally, the worst that should happen when two processes access a maildir is that metadata might be out of date, requiring a reindexing operation.
	jeenyus.net /~budney/linux/mdmh.html (1140 words)

	#396 ([PATCH] Maildir folder and courier Maildir++ support (quota)) - Twisted - Trac
		I have extended the twisted maildir implementation with folder support and the courier maildir++ extension(quota).
		All maildir functionality is now concentrated within a single (new) class called Maildir.
		I now think the best way to proceed would be to provide this Maildir implementation as a standalone module that implements a well defined interface, and then, if necessary, patch Twisted to support objects of that interface.
	twistedmatrix.com /trac/ticket/396 (226 words)

	maildir-mirror
		maildir-mirror is a program useful to keep multiple copies of a given maildir directory synchronized, allowing you to make changes to each copy and commit them to a central location.
		Then the client reads the list of files in the maildir and compares it with the state the last time the mirror was synchronized.
		After sending all the changes for a given maildir, the server waits for the remote changes for the next.
	bachue.com /svnwiki/maildir-mirror (757 words)

	Cultured Perl: Use IMAP with Perl, Part 2
		A Maildir consists of a single directory with the subdirectories "cur," "new," and "tmp." There can be other subdirectories, but they are ignored.
		Because Maildir is a local feature, meaning you can access the data in the Maildir over the locally mounted filesystems, backups and mailbox deletion are simple shell operations.
		The logic of the Maildir and IMAP loops may seem similar, but they were not similar enough to be merged.
	www-128.ibm.com /developerworks/library/l-cpimap2.html?... (2133 words)

	imap-maildir: production quality UW-imap server Maildir support
		There is a patch which adds in a Maildir driver, but it falls short of a workable solution in a few ways.
		Moving mail between Mbox folders and Maildir folders causes an error because the code in the Maildir driver to move messages between folders of different formats (which I understand is a substantial chunk of work) was never written.
		This change gets around a problem with the Maildir driver where it can't move mail between an mbox folder and a maildir, by just making sure all of our folders are maildirs.
	www.davideous.com /imap-maildir (1605 words)

	qmail: Second most popular MTA on the Internet
		Russell Nelson's convert-and-create script will create Maildirs for all users who receive mail and will convert their /var/spool/mail mbox-format mailboxes into messages in a Maildir.
		Mutt is a MUA that has native support for Maildirs.
		Ragnar Kjørstad has adjusted the maildir patches for pine 4.00 to work with pine 4.10, and imapd 4.5.
	www.qmail.org /top.html (8686 words)

	pine-patches
		Maildir patches for 4.4x and 4.5x also include my fix to mailcmd.c, which brings back the ability to save mails from Maildir Inbox to mbox folders.
		Maybe using some of them is a better idea, but for now I stick to the same old thing, which just allows one to read Maildir Inbox from pine.
		I'm not the author of maildir patch, and I don't know why it doesn't work for you.
	hico.fphil.uniba.sk /pine-patches.html (641 words)

	mb2md: convert mailbox to maildir (Site not responding. Last check: 2007-10-08)
		Maildir, a format invented by Dan Bernstein of qmail fame, sucks much, much less.
		It insists that the output maildir not exist when you start, so you know that the output maildir exactly matches the input mbox.
		Specifically, new/old/read messages in the mbox remain new/old/read in the maildir.
	www.gerg.ca /hacks/mb2md (336 words)

	Mailbox vs Maildir (Site not responding. Last check: 2007-10-08)
		The Hudson was equivalent to mbox, .msg was the same as maildir* and Squish was somewhere in the middle.
		A Squish message base had three files per "folder", an index, a content and another which might have been a header or something (I can't remember).
		Sometimes I think I'd like to try maildir but only if there was a way to change it w/o having to change the software I'm using or to go through massive hoops reconfiguring everything.
	www.moongroup.com /pipermail/mailhelp/2003-April/000593.html (301 words)

	Deliver Maildir (Site not responding. Last check: 2007-10-08)
		The mail filtering program might deliver to one of several different Maildir directories, and I wanted it to be able to delay the final delivery until the program was almost finished, and the mail mostly written to disk.
		A Maildir delivery program needs to change its current working directory to the Maildir directory to be fully compliant with the spec.
		So, the Maildir delivery program should be an external program that accepts the mail to be delivered on stdin.
	www.omnifarious.org /~hopper/technical/delivermaildir (719 words)

	[No title] (Site not responding. Last check: 2007-10-08)
		The comment at the top of the script explains why this one is better than some of the others at www.qmail.org.
		This means that if you receive new mail, then xbiff # alerts you, then you run "mdfrm.pl" to see a summary of the mail, # xbiff will unhighlight itself and not alert again until more new # mail arrives.
		This makes the maildir functionality of xbiff # equivalent to the mbox-file functionality.
	qmail.serve-you.net /mdcheckmail (426 words)

	Howto: Maildir billenium bug (Site not responding. Last check: 2007-10-08)
		patch, which adds maildir capability to pine and uw-imap.
		The patches stored on this page were modified to include this fix.
		to the begining of all old mails in maildirs, then the old sorting code will work again.
	hico.fphil.uniba.sk /ht-maildir-billeniumbug.html (193 words)

	Moving a Maildir folder
		Here is a listing of the Maildir from a disabled user's account and all of the contents that need to be moved to another folder:
		This person's sent items folder was not set to record to the Maildir directory and all sent items resided on the local machine of the disabled user.
		Okay, here is the easiest way I have found to move Maildir folders to another Maildir directory.
	www.yellowbugcomputers.com /techdocs/movingamaildir.html (604 words)

	Celestial Software LLC - Maildir Delivery (Site not responding. Last check: 2007-10-08)
		This describes the configuration files used by the Csys.Maildir python module that provide several extensions to the normal Maildir mailbox system.
		The normal Maildir file names consist of three main parts, Unix time, uniq sequence, and host/message status.
		By using the Unix time from the message headers, and a cryptographic checksum of the message body for the sequence number, we can easily screen for duplicate messages or duplicate message bodies, discarding duplicates or putting them in special folders.
	www.celestial.com /Members/bill/Drafts/Maildir (144 words)

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