isync/isync.1

.ig
\" isync - IMAP4 to maildir mailbox synchronizer
\" Copyright (C) 2000-2 Michael R. Elkins <me@mutt.org>
\"
\"  This program is free software; you can redistribute it and/or modify
\"  it under the terms of the GNU General Public License as published by
\"  the Free Software Foundation; either version 2 of the License, or
\"  (at your option) any later version.
\"
\"  This program is distributed in the hope that it will be useful,
\"  but WITHOUT ANY WARRANTY; without even the implied warranty of
\"  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
\"  GNU General Public License for more details.
\"
\"  You should have received a copy of the GNU General Public License
\"  along with this program; if not, write to the Free Software
\"  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
..
.TH isync 1 "2002 Jun 17"
..
.SH NAME
isync - synchronize IMAP4 and maildir mailboxes
..
.SH SYNOPSIS
.B isync
[
.I options...
]
.I mailbox
[
.I mailbox ...
]
..
.SH DESCRIPTION
.B isync
is a command line application which synchronizes a local maildir-style
mailbox with a remote IMAP4 mailbox, suitable for use in IMAP-disconnected
mode.  Multiple copies of the remote IMAP4 mailbox can be maintained, and
all flags are synchronized.
..
.SH OPTIONS
.TP
\fB-a\fR, \fB--all\fR
Synchronize all mailboxes specified in the user's ~/.isyncrc.
.TP
\fB-C\fR, \fB--create\fR
Automatically create the local maildir-style mailbox if it doesn't already
exist.
.TP
\fB-c\fR, \fB--config\fR \fIfile\fR
Read configuration from
.I file
By default, configuration is read from ~/.isyncrc if it exists.
.TP
.B -d, --delete
Causes
.B isync
to delete messages from the local maildir mailbox which do not exist on the
IMAP server.  By default,
.I dead
messages are
.B not
deleted.
.TP
\fB-e\fR, \fB--expunge\fR
Causes
.B isync
to permanently remove all messages marked for deletion in both the local
maildir mailbox and the remote IMAP mailbox.  By default, messages are
.B not
expunged.
.TP
\fB-f\fR, \fB--fast\fR
Causes
.B isync
to skip the step of synchronzing message flags between the local maildir
mailbox and the IMAP mailbox.  Only new messages existing on the server will
be fetched into the local mailbox.
.TP
\fB-h\fR, \fB--help\fR
Displays a summary of command line options
.TP
\fB-p\fR, \fB--port\fR \fIport\fR
Specifies the port on the IMAP server to connect to (default: 143)
.TP
\fB-q\fR, \fB--quiet\fR
Supress feedback messages.
.TP
\fB-r\fR, \fB--remote\fR \fIbox\fR
Specifies the name of the remote IMAP mailbox to synchronize with
(Default: INBOX)
.TP
\fB-s\fR, \fB--host\fR \fB[\fRimaps:\fB]\fR\fIhost\fR
Specifies the hostname of the IMAP server
.TP
\fB-u\fR, \fB--user\fR \fIuser\fR
Specifies the login name to access the IMAP server (default: $USER)
.TP
.B -v, --version
Displays
.B isync
version information
.TP
.B -V, --verbose
Enables
.I verbose
mode, which displays the IMAP4 network traffic.
..
.SH CONFIGURATION
.B isync
reads
.I ~/.isyncrc
to load default configuration data.  Each line of the configuration file
consists of a command.  The following commands are understood:
.TP
\fBMailbox\fR \fIpath\fR
Defines a local maildir mailbox.  All configuration commands following this
line, up until the next
.I Mailbox
command, apply to this mailbox only.
..
.TP
\fBHost\fR \fB[\fRimaps:\fB]\fR\fIname\fR
Defines the DNS name or IP address of the IMAP server.  If the hostname is
prefixed with
.I imaps:
the connection is assumed to be a SSL connection to port 993 (though you can
change this by placing a
.B Port
command
.B after
the
.B Host
command.  Note that some servers support SSL on the default port 143.
.B isync
will always attempt to use SSL if available.
..
.TP
\fBPort\fR \fIport\fR
Defines the TCP port number on the IMAP server to use (Default: 143)
..
.TP
\fBBox\fR \fImailbox\fR
Defines the name of the remote IMAP mailbox associated with the local
maildir mailbox (Default: INBOX)
..
.TP
\fBUser\fR \fIusername\fR
Defines the login name on the IMAP server (Default: current user)
..
.TP
\fBPass\fR \fIpassword\fR
Defines the password for
.I username
on the IMAP server.  Note that this option is
.B NOT
required.  If no password is specified in the configuration file,
.B isync
will prompt you for it.
..
.TP
\fBAlias\fR \fIstring\fR
Defines an alias for the mailbox which can be used as a shortcut on the
command line.
..
.TP
\fBCopyDeletedTo\fR \fIstring\fR
Specifies the remote IMAP mailbox to copy deleted messages prior to
expunging (Default: none).
..
.TP
\fBDelete\fR \fIyes|no\fR
Specifies whether messages in the local copy of the mailbox which don't
exist on the server are automatically deleted.  (Default: no).
..
.TP
\fBExpunge\fR \fIyes|no\fR
Specifies whether deleted messages are expunged by default (Default: no).
\fBNOTE:\fR  The
.I -e
command line option overrides this setting when set to
\fIno\fR.
..
.TP
\fBMailDir\fR \fIstring\fR
Specifies the location for your mailboxes if a relative path is
specified in a
.I Mailbox
command (Default: \fI~\fR).
.B NOTE:
This directive is only meaningful the in
.I global
section (see below).
..
.TP
\fBMaxMessages\fR \fIcount\fR
Sets the number of messages
.B isync
should keep in a mailbox.
This is useful for mailboxes where you keep a complete archive on the
server, but want to mirror only the last messages (for instance, for mailing
lists.)
The messages that were the first to arrive in the mailbox (independent of the
actual date of the message) will automatically be deleted if you tell
pass
.B isync
the delete (-d, --delete) flag.
Messages that are flagged (marked as important) will not be automatically
deleted.
If
.I count
is 0, the maximum number of messages is
.B unlimited
(Default: 0).
..
.TP
\fBMaxSize\fR \fIbytes\fR
Sets a threshold for the maximum message size (in bytes) for which
.B isync
should fetch from the server.  This is useful for weeding out messages with
large attachments.  If
.I bytes
is 0, the maximum file size is
.B unlimited.
..
.TP
\fBTunnel\fR \fIcommand\fR
Specify a command to run to establish a connection rather than opening a TCP
socket.  This allows you to run an IMAP session over an SSH tunnel, for
example.
.TP
\fBUseNamespace\fR \fIyes|no\fR
Selects whether
.B isync
should select mailboxes using the namespace given by the NAMESPACE command.
This is useful with broken IMAP servers. (Default:
.I yes
)
..
.TP
\fBRequireCRAM\fR \fIyes|no\fR
If set to
.I yes
,
.B isync
will require that the server accept CRAM-MD5 intead of PLAIN to authenticate
the user.
..
.TP
\fBRequireSSL\fR \fIyes|no\fR
.B isync
will abort the connection if a TLS/SSL session to the IMAP
server can not be established.  (Default:
.I yes
)
..
.TP
\fBCertificateFile\fR \fIpath\fR
File containing X.509 CA certificates used to verify server identities.
..
.TP
\fBUseSSLv2\fR \fIyes|no\fR
Should
.B isync
use SSLv2 for communication with the IMAP server over SSL?  (Default:
.I yes
if the imaps port is used, otherwise
.I no
)
..
.TP
\fBUseSSLv3\fR \fIyes|no\fR
Should
.B isync
use SSLv3 for communication with the IMAP server over SSL?  (Default:
.I yes
if the imaps port is used, otherwise
.I no
)
..
.TP
\fBUseTLSv1\fR \fIyes|no\fR
Should
.B isync
use TLSv1 for communication with the IMAP server over SSL?  (Default:
.I yes
)
..
.P
Configuration commands that appear prior to the first
.B Mailbox
command are considered to be
.I global
options which are used as defaults when those specific options are not
specifically set for a defined Mailbox.  For example, if you use the same
login name for several IMAP servers, you can put a
.B User
command before the first
.B Mailbox
command, and then leave out the
.B User
command in the sections for each mailbox.
.B isync
will then use the global value by default.
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.SH FILES
.TP
.B ~/.isyncrc
Default configuration file
..
.SH BUGS
.B isync
does not use NFS-safe locking.  It will correctly prevent concurrent
synchronization of a mailbox on the same host, but not across NFS.
.P
When synchronizing multiple mailboxes on the same IMAP server, it is not
possible to select different SSL options for each mailbox.  Only the options
from the first mailbox are applied since the SSL session is reused.
.P
If new mail arrives in the IMAP mailbox after
.B isync
has retrieved the initial message list, the new mail will not be fetched
until the next time
.B isync
is invoked.
.P
It is currently impossible to unset the \\Flagged attribute of a message
once it is set.  It has to be manually unset everywhere since isync
doesn't have enough information to know which was the last status of the
message.
.P
The ndbm database created for each mailbox is not portable across different
architectures.  It currently stores the UID in host byte order.
.SH SEE ALSO
mutt(1), maildir(5)
.P
Up to date information on
.B isync
can be found at
http://www.cs.hmc.edu/~me/isync/.
..
.SH AUTHOR
Written by Michael R. Elkins <me@mutt.org>.