mswatch 1.2.0

Keeps two mailboxes synchronized more efficiently and with shorter delays
mswatch project is a command line unix program that keeps two mailboxes synchronized more efficiently and with shorter delays than periodically synchronizing the two mailboxes.

mswatch watches mailboxes to know when to initiate mailbox syncs. Using mswatch, your mail synchronization program can be called on demand instead of through polling, resulting in prompter mail delivery and lower bandwidth usage and server load.

mswatch is designed to work in conjunction with mailbox synchronization programs, currently supports watching Linux (2.4+) hosted Maildirs (including Maildir folders, Maildir++), and is licensed under the GNU GPL. Future support for additional mailbox formats, especially for mbox, is planned.

Why mswatch
Keeping a set of mailboxes on multiple computers means keeping the copies synchronized (eg on one's desktop and laptop or on a personal computer that can not be reached while on the road an always-reachable server). While the IMAP protocol is designed to support this and is widely used, IMAP clients can only detect mailbox changes by querying the server.

Thus clients generally either sync when the user requests or sync periodically. However, because each mailbox sync uses server and network resources and because users often have a number of mailboxes, many of which receive mail infrequently, one must compromise between prompt message delivery and low server and network resource usage. Typical practice is to sync only when the user requests or to sync periodically with 5-10 minute frequencies. Nonetheless, it is often helpful for users to see new mail fairly soon after its arrival (eg notifications, group meeting changes, or active conversation threads).

mswatch addresses this speed of delivery vs resource usage tradeoff using interrupt-based instead of polling behavior to detect mailbox changes. mswatch asks each of the two mailstores to send mailbox change notifications; when mswatch receives a notification it in turn invokes the user's mailbox synchronization program for the changed mailbox. Thus, idle mailboxes do not use active resources and prompt mailbox synchronization is efficient.

last updated on:
July 12th, 2011, 7:05 GMT
price:
FREE!
developed by:
Chris Frost
homepage:
mswatch.sourceforge.net
license type:
GPL (GNU General Public License) 
category:
ROOT \ Communications \ Email

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What's New in This Release:
  • mswatch was made more robust against mail synchronization program bugs, through the addition of the socketwatch program and optional polling feature.
  • Not syncing particular mailboxes is now supported.
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