Convert mbox to Maildir – mb2md

mboxからMaildirに移行した作業メモです｡今回はmb2md-3.20.plを使用しました｡

Converting Mbox mailboxes to Maildir format:
http://batleth.sapienti-sat.org/projects/mb2md/

【移行元】
･sendmail Version 8.12.11.20060308
･Qpopper version 4.0.9 (non-standalone)
･mbox

【移行先】
･postfix 2.6.6
･dovecot 2.0.9
･Maildir

下記のサイトに多くの情報がありDovecot用に改変したmb2md.plもありますが､これで検証したところ未読､既読の情報となる”Status: RO“がコンバート時に削除されてしまい､クライアント側ですべてのメールを再受信してしまいました｡
※サーバにメールを残す設定にしていなければすべて未読メールなので大丈夫と思います｡

Converting between mailbox formats
http://wiki2.dovecot.org/Migration/MailFormat

mb2md-3.20.plでコンバート実行

$ perl mb2md-3.20.pl -h
Usage:
       mb2md -h
       mb2md [-c] -m [-d destdir]
       mb2md [-c] -s sourcefile [-d destdir]
       mb2md [-c] -s sourcedir [-l wu-mailboxlist] [-R|-f somefolder] [-d destdir] [-r strip_extension]

$ perl mb2md-3.20.pl -h

Usage:

mb2md -h

mb2md [-c] -m [-d destdir]

mb2md [-c] -s sourcefile [-d destdir]

mb2md [-c] -s sourcedir [-l wu-mailboxlist] [-R|-f somefolder] [-d destdir] [-r strip_extension]

$ perl mb2md-3.20.pl -s mbox -d Maildir
Converting /home/matsuoka/mbox to maildir: /home/matsuoka/Maildir
Source Mbox is /home/matsuoka/mbox
Target Maildir is /home/matsuoka/Maildir
2 messages.

$ perl mb2md-3.20.pl -s mbox -d Maildir

Converting /home/matsuoka/mbox to maildir: /home/matsuoka/Maildir

Source Mbox is /home/matsuoka/mbox

Target Maildir is /home/matsuoka/Maildir

2 messages.

Dovecotの設定変更

下記のサイトにあるように”pop3_reuse_xuidl=yes“に変更します｡
Migration to Dovecot
http://wiki2.dovecot.org/Migration

# vi /etc/dovecot/conf.d/20-pop3.conf
# grep pop3_reuse_xuidl /etc/dovecot/conf.d/20-pop3.conf
  #pop3_reuse_xuidl = no
  pop3_reuse_xuidl = yes
# /etc/init.d/dovecot restart
Stopping Dovecot Imap:                                     [  OK  ]
Starting Dovecot Imap:                                     [  OK  ]

# vi /etc/dovecot/conf.d/20-pop3.conf

# grep pop3_reuse_xuidl /etc/dovecot/conf.d/20-pop3.conf

#pop3_reuse_xuidl = no

pop3_reuse_xuidl = yes

# /etc/init.d/dovecot restart

Stopping Dovecot Imap: [ OK ]

Starting Dovecot Imap: [ OK ]

クライアント outlook 2016ですべてのメールを再受信しないで､新規メールから受信してくれたので大丈夫かな｡

勉強のついでなのでmb2md.plの使用法も記載しておきます｡
mb2md.pl

$ perl mb2md.pl -h
Usage:
       mb2md -h
       mb2md [-c] [-K] [-U|-u] [-S] [-W] -m [-d destdir]
       mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcefile [-d destdir]
       mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcedir [-l wu-mailboxlist] [-R|-f somefolder] [-d destdir] [-r strip_extension]

$ perl mb2md.pl -h

Usage:

mb2md -h

mb2md [-c] [-K] [-U|-u] [-S] [-W] -m [-d destdir]

mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcefile [-d destdir]

mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcedir [-l wu-mailboxlist] [-R|-f somefolder] [-d destdir] [-r strip_extension]

#!/usr/bin/perl -w
#
# $Id: mb2md.pl,v 1.26 2004/03/28 00:09:46 juri Exp $
# mb2md-3.20.pl      Converts Mbox mailboxes to Maildir format.
#
# !! This is a version modified for Dovecot. Use Dovecot mailing list
# !! <dovecot@dovecot.org> for questions, patches, etc. You don't have to be
# !! subscribed to send mail there. Do not send mail directly to people
# !! listed below.

# USAGE
# =====
#
# Run this as the user of the mailboxes, not as root.
#
#
# mb2md -h
# mb2md [-c] [-K] [-U|-u] [-S] [-W] -m [-d destdir]
# mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcefile [-d destdir]
# mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcedir [-l wu-mailboxlist] [-R|-f somefolder] [-d destdir] [-r strip_extension]
#
#  -c            use the Content-Length: headers (if present) to find the
#                beginning of the next message
#                Use with caution! Results may be unreliable. I recommend to do
#                a run without "-c" first and only use it if you are certain,
#                that the mbox in question really needs the "-c" option
#
#  -K            Preserve message keywords in a Dovecot-compatible way. This
#                looks for X-Keywords: tags and X-IMAP: and X-IMAPbase: tags
#                to determine keywords for messages and creates a Dovecot-
#                compatible "dovecot-keywords" file in "destdir"
#                NOTE: NO LOCKING IS DONE AND THE FILE MUST NOT ALREADY EXIST.
#                 IF YOU USE THIS OPTION ON A MAILDIR THAT MAY BE ACCESSED BY
#                 ANOTHER PROGRAM AT THE SAME TIME, STRANGE THINGS MAY HAPPEN.
#
#  -U            Preserve message UIDs in a Dovecot-compatible way
#                Looks for X-UID:, X-IMAP:, and X-IMAPbase: headers and
#                creates a Dovecot-compatible dovecot-uidlist file in
#                "destdir"
#                NOTE: NO LOCKING IS DONE AND THE FILE MUST NOT ALREADY EXIST.
#                 IF YOU USE THIS OPTION ON A MAILDIR THAT MAY BE ACCESSED BY
#                 ANOTHER PROGRAM AT THE SAME TIME, STRANGE THINGS MAY HAPPEN.
#
#  -u            Same as -U above, except creates a Courier IMAP-compatible
#                courierimapuiddb file instead. The only difference according
#                to http://wiki.dovecot.org/MailboxFormat/Maildir is that
#                Courier IMAP only stores the maildir file's basename
#                (everything before the colon)
#                NOTE: NO LOCKING IS DONE AND THE FILE MUST NOT ALREADY EXIST.
#                 IF YOU USE THIS OPTION ON A MAILDIR THAT MAY BE ACCESSED BY
#                 ANOTHER PROGRAM AT THE SAME TIME, STRANGE THINGS MAY HAPPEN.
#
#  -S            Add Maildir++ standard ,S= tag to the message filenames
#                indicating the size of the message on disk. This can be used
#                by Courier and Dovecot in calculating quotas.
#                I think Dovecot always uses this but not sure about Courier.
#                For Exim, see the quota_size_regex and maildir_tag config
#                statements.
#
#  -W            Add ,W= tag to the message filename indicating the RFC822.SIZE
#                of the message. This is the size of the message when actually
#                sent to an IMAP client with LF characters converted to CRLF
#                pairs as per the spec. Dovecot uses this to speed up returning
#                these sizes. Not sure if any other applications use it.
#
#  -m            If this is used then the source will
#                be the single mailbox at /var/spool/mail/blah for
#                user blah and the destination mailbox will be the
#                "destdir" mailbox itself.
#
#
#  -s source     Directory or file relative to the user's home directory,
#                which is where the the "somefolders" directories are located.
#                Or if starting with a "/" it is taken as a
#                absolute path, e.g. /mnt/oldmail/user
#
#                or
#
#                A single mbox file which will be converted to
#                the destdir.
#
#  -R            If defined, do not skip directories found in a mailbox
#                directory, but runs recursively into each of them,
#                creating all wanted folders in Maildir.
#                Incompatible with '-f'
#
#  -f somefolder Directories, relative to "sourcedir" where the Mbox files
#                are. All mailboxes in the "sourcedir"
#                directory will be converted and placed in the
#                "destdir" directory.  (Typically the Inbox directory
#                which in this instance is also functioning as a
#                folder for other mailboxes.)
#
#                The "somefolder" directory
#                name will be encoded into the new mailboxes' names.
#                See the examples below.
#
#                This does not save an UW IMAP dummy message file
#                at the start of the Mbox file.  Small changes
#                in the code could adapt it for looking for
#                other distinctive patterns of dummy messages too.
#
#                Don't let the source directory you give as "somefolders"
#                contain any "."s in its name, unless you want to
#                create subfolders from the IMAP user's point of
#                view.  See the example below.
#
#                Incompatible with '-f'
#
#
#  -d destdir    Directory where the Maildir format directories will be created.
#                If not given, then the destination will be ~/Maildir .
#                Typically, this is what the IMAP server sees as the
#                Inbox and the folder for all user mailboxes.
#                If this begins with a '/' the path is considered to be
#                absolute, otherwise it is relative to the users
#                home directory.
#
#  -r strip_ext  If defined this extension will be stripped from
#                the original mailbox file name before creating
#                the corresponding maildir. The extension must be
#                given without the leading dot ("."). See the example below.
#
#  -l WU-file    File containing the list of subscribed folders.  If
#                migrating from WU-IMAP the list of subscribed folders will
#                be found in the file called .mailboxlist in the users
#                home directory.  This will convert all subscribed folders
#                for a single user:
#                /bin/mb2md -s mail -l .mailboxlist -R -d Maildir
#                and for all users in a directory as root you can do the
#                following:
#                for i in *; do echo $i;su - $i -c "/bin/mb2md -s mail -l .mailboxlist -R -d Maildir";done

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#!/usr/bin/perl -w

# $Id: mb2md.pl,v 1.26 2004/03/28 00:09:46 juri Exp $

# mb2md-3.20.pl Converts Mbox mailboxes to Maildir format.

# !! This is a version modified for Dovecot. Use Dovecot mailing list

# !! <dovecot@dovecot.org> for questions, patches, etc. You don't have to be

# !! subscribed to send mail there. Do not send mail directly to people

# !! listed below.

# USAGE

# =====

# Run this as the user of the mailboxes, not as root.

# mb2md -h

# mb2md [-c] [-K] [-U|-u] [-S] [-W] -m [-d destdir]

# mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcefile [-d destdir]

# mb2md [-c] [-K] [-U|-u] [-S] [-W] -s sourcedir [-l wu-mailboxlist] [-R|-f somefolder] [-d destdir] [-r strip_extension]

# -c use the Content-Length: headers (if present) to find the

# beginning of the next message

# Use with caution! Results may be unreliable. I recommend to do

# a run without "-c" first and only use it if you are certain,

# that the mbox in question really needs the "-c" option

# -K Preserve message keywords in a Dovecot-compatible way. This

# looks for X-Keywords: tags and X-IMAP: and X-IMAPbase: tags

# to determine keywords for messages and creates a Dovecot-

# compatible "dovecot-keywords" file in "destdir"

# NOTE: NO LOCKING IS DONE AND THE FILE MUST NOT ALREADY EXIST.

# IF YOU USE THIS OPTION ON A MAILDIR THAT MAY BE ACCESSED BY

# ANOTHER PROGRAM AT THE SAME TIME, STRANGE THINGS MAY HAPPEN.

# -U Preserve message UIDs in a Dovecot-compatible way

# Looks for X-UID:, X-IMAP:, and X-IMAPbase: headers and

# creates a Dovecot-compatible dovecot-uidlist file in

# "destdir"

# NOTE: NO LOCKING IS DONE AND THE FILE MUST NOT ALREADY EXIST.

# IF YOU USE THIS OPTION ON A MAILDIR THAT MAY BE ACCESSED BY

# ANOTHER PROGRAM AT THE SAME TIME, STRANGE THINGS MAY HAPPEN.

# -u Same as -U above, except creates a Courier IMAP-compatible

# courierimapuiddb file instead. The only difference according

# to http://wiki.dovecot.org/MailboxFormat/Maildir is that

# Courier IMAP only stores the maildir file's basename

# (everything before the colon)

# NOTE: NO LOCKING IS DONE AND THE FILE MUST NOT ALREADY EXIST.

# IF YOU USE THIS OPTION ON A MAILDIR THAT MAY BE ACCESSED BY

# ANOTHER PROGRAM AT THE SAME TIME, STRANGE THINGS MAY HAPPEN.

# -S Add Maildir++ standard ,S= tag to the message filenames

# indicating the size of the message on disk. This can be used

# by Courier and Dovecot in calculating quotas.

# I think Dovecot always uses this but not sure about Courier.

# For Exim, see the quota_size_regex and maildir_tag config

# statements.

# -W Add ,W= tag to the message filename indicating the RFC822.SIZE

# of the message. This is the size of the message when actually

# sent to an IMAP client with LF characters converted to CRLF

# pairs as per the spec. Dovecot uses this to speed up returning

# these sizes. Not sure if any other applications use it.

# -m If this is used then the source will

# be the single mailbox at /var/spool/mail/blah for

# user blah and the destination mailbox will be the

# "destdir" mailbox itself.

# -s source Directory or file relative to the user's home directory,

# which is where the the "somefolders" directories are located.

# Or if starting with a "/" it is taken as a

# absolute path, e.g. /mnt/oldmail/user

# or

# A single mbox file which will be converted to

# the destdir.

# -R If defined, do not skip directories found in a mailbox

# directory, but runs recursively into each of them,

# creating all wanted folders in Maildir.

# Incompatible with '-f'

# -f somefolder Directories, relative to "sourcedir" where the Mbox files

# are. All mailboxes in the "sourcedir"

# directory will be converted and placed in the

# "destdir" directory. (Typically the Inbox directory

# which in this instance is also functioning as a

# folder for other mailboxes.)

# The "somefolder" directory

# name will be encoded into the new mailboxes' names.

# See the examples below.

# This does not save an UW IMAP dummy message file

# at the start of the Mbox file. Small changes

# in the code could adapt it for looking for

# other distinctive patterns of dummy messages too.

# Don't let the source directory you give as "somefolders"

# contain any "."s in its name, unless you want to

# create subfolders from the IMAP user's point of

# view. See the example below.

# Incompatible with '-f'

# -d destdir Directory where the Maildir format directories will be created.

# If not given, then the destination will be ~/Maildir .

# Typically, this is what the IMAP server sees as the

# Inbox and the folder for all user mailboxes.

# If this begins with a '/' the path is considered to be

# absolute, otherwise it is relative to the users

# home directory.

# -r strip_ext If defined this extension will be stripped from

# the original mailbox file name before creating

# the corresponding maildir. The extension must be

# given without the leading dot ("."). See the example below.

# -l WU-file File containing the list of subscribed folders. If

# migrating from WU-IMAP the list of subscribed folders will

# be found in the file called .mailboxlist in the users

# home directory. This will convert all subscribed folders

# for a single user:

# /bin/mb2md -s mail -l .mailboxlist -R -d Maildir

# and for all users in a directory as root you can do the

# following:

# for i in *; do echo $i;su - $i -c "/bin/mb2md -s mail -l .mailboxlist -R -d Maildir";done

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Convert mbox to Maildir – mb2md

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Convert mbox to Maildir – mb2md

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