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_
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(_)___ _ _ _ __ ___
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| / __| | | | '_ \ / __|
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| \__ \ |_| | | | | (__
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|_|___/\__, |_| |_|\___|
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|___/
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isync/mbsync - free (GPL) mailbox synchronization program
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http://isync.sf.net/
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See AUTHORS for contact information.
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``mbsync'' is a command line application which synchronizes mailboxes;
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currently Maildir and IMAP4 mailboxes are supported. New messages, message
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deletions and flag changes can be propagated both ways.
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``mbsync'' is suitable for use in IMAP-disconnected mode.
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Synchronization is based on unique message identifiers (UIDs), so no
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identification conflicts can occur (as opposed to some other mail
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synchronizers).
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Synchronization state is kept in one local text file per mailbox pair;
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multiple replicas of a mailbox can be maintained.
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isync is the project name, while mbsync is the current executable name; this
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change was necessary because of massive changes in the user interface. An
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isync executable still exists; it is a compatibility wrapper around mbsync.
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* Features
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* Fine-grained selection of synchronization operations to perform
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* Synchronizes single mailboxes or entire mailbox collections
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* Partial mirrors possible: keep only the latest messages locally
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* Trash functionality: backup messages before removing them
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* IMAP features:
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* Supports TLS/SSL via imaps: (port 993) and STARTTLS (RFC2595)
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* Supports SASL (RFC4422) for authentication
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* Supports NAMESPACE (RFC2342) for simplified configuration
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* Pipelining for maximum speed
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* Compatibility
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isync should work fairly well with any IMAP4 compliant server;
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servers that support the UIDPLUS and LITERAL+ extensions are most
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efficient.
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Courier 1.4.3 is known to be buggy, version 1.7.3 works fine.
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c-client (UW-IMAP, Pine) is mostly fine, but versions less than 2004a.352
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tend to change UIDVALIDITY pretty often when used with unix/mbox mailboxes,
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making isync refuse synchronization.
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M$ Exchange (up to 2010 at least) occasionally exposes the same problem.
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The "cure" is to simply copy the new UIDVALIDITY from the affected
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mailbox to mbsync's state file. This is a Bad Hack (TM), but it works -
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use at your own risk (if the UIDVALIDITY change was genuine, this will
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delete all messages in the affected mailbox - not that this ever
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happened to me).
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* Platforms
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At some point, ``isync'' has successfully run on:
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Linux, Solaris 2.7, OpenBSD 2.8, FreeBSD 4.3.
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* Requirements
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Berkley DB 4.2+ (optional)
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OpenSSL for TLS/SSL support (optional)
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* Installation
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./autogen.sh (only when building from git)
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./configure
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make
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sudo make install
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* Help
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Please see the man page for complete documentation.
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