Thunderbird/Enterprise/Migration: Difference between revisions

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==== Warning: This is Draft ====
==== Warning: This is Draft ====
*This is draft of Migration Guide for corporate users.
*This is draft of Migration Guide for corporate users.
*Migration Guide is being tried to create, because we knew this kind of documentation is needed in [https://bugzilla.mozilla.org/show_bug.cgi?id=562589 Bug 562589]. This draft is a brief summary of knowledge about auto-sync/offline-use settings obtained in the Bug 562589 (as of 2010/05/06).
*Initial draft is a brief summary of knowledge about auto-sync/offline-use settings obtained in the {{Bug|562589}} (as of 2010/05/06).
;Backgrounds:
;Backgrounds:


*Upon release of Thunderbird 3.0, next big changes were made.
*Big changes in Thunderbird 3.0:
**Gloda(Global Search and Indexer) is enabled by default.  
**Gloda (Global Search and Indexer). Enabled by default.  
**Auto-sync of IMAP folders is enabled by default for all IMAP accounts.  
**Auto-sync of IMAP folders.  Enabled by default.  
**Per folder "offline use" setting of all IMAP folders is set to "offline use=ON" by default upon migration(first use of Tb 3.0.x).  
**Per-folder "offline use" setting of all IMAP folders is set to "offline use=ON" by default upon migration (on first use of Tb 3.0.x).  
**View of folder pane is forced to "Smart Folders" even though "All Folders" is Tb 2 user's ordinal choice in his daily use.  
**"Smart Folders" is default folder pane view, even if "All Folders" is user's choice in Tb 2.  
**Tb 2's "Account Wizard" and Tb3.0beta's "Account Wizard for Gmail IMAP" is removed before official release of Tb 3.0.0.
**Thunderbird 2's "Account Wizard", and Thunderbird 3.0 beta's "Account Wizard for Gmail IMAP" is no longer available in Thunderbird 3.0.
*;:But spec of above big changes, required settings for above big changes, are not so well documented yet.
*;:Note, not all settings for above big changes are well documented yet.


*Next configuration is very usual in corporate environment nowadays.
*Typical corporate environment:
**IMAP is used as corporate standard mail system.
**IMAP folders.
**High mail data volume is held in IMAP folders because of business use.
**High mail data volume.
**Use of Roaming Profile or something similar is not special in corporate environment, because both of roaming and ease of backup/recovery is required in many corporate environment.
**Use of Roaming Profile or something similar is common, because flexibility of roaming and ease of backup/recovery are frequent requirements.
*;:It conflicts with Tb 3's "Gloda is enabled by default upon upgrade" and "auto-sync of all IMAP folders is enabled by default upon upgrade" in some places.  
*;:The above requirements may conflict with TB 3's "Gloda is enabled by default upon upgrade" and "auto-sync of all IMAP folders is enabled by default upon upgrade" in some places.  


*Main purpose of mass upgrade from Tb 2 to Tb 3 in corporate environment is never trial and testing of new features. Main puropose of mass upgrade is;
*Main purpose of mass upgrade from Tb 2 to Tb 3 in corporate environment is never trial and testing of new features. Main purpose of mass upgrade is;
** Tb 2's bug fix
** Tb 2's bug fix
** Improvements in stability
** Improvements in stability
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** improvements in usability without breaking existent important features.
** improvements in usability without breaking existent important features.


This Migration Guide is to avoid unwanted/needless problems which can happen upon upgrade from Tb 2.0.x to Tb 3.0.x if people who has to manage corporate system tried upgrade from Thunderbird 2 to Thunderbird 3 easily.
This Migration Guide assumes the above conditions and lists options to avoid problems


==== Disable Migration Assistance ====
==== Disable Migration Assistance ====
canmove, Confirmed users
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