User Migration: Difference between revisions

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Migration from one mail system to another is often painful. It can result in a user having to look in two different places to find mail, or in the worst case mail disappearing.
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=User Migration=
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Copying the contents of one mail system to another often seems like a good idea, that way if anything goes wrong at least the old mail is still available.
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Ideally you know exactly what you are going to do at the start, you move everything across and then you kill the old mail system (or at least make it not visible from Mail clients).  That way users are not confused by having two sets of identical folders.
First, note that you'll want to create accounts in Zimbra first before you do the migration. If you want to do it in one shot, read [[Bulk Provisioning]].


In reality you may have to learnt on the Job, al least if you have to walk around a load of PCs
Migrating your users means you're going to have to deal with [[Mail Migration|mail]],  [[Calendar and Contacts Migration|calendar, contacts]]  and [[Password Migration|passwords]]. This page used to be one monolithic monstrosity -- but has now been broken down into separate pages:
at least the users can be using the web based mail program until you get to them, to convert their mail client to point from old mail server to Zimbra


Many users think email means Outlook, this is unfortunate for a number of reasons.
* [[Mail Migration]]
* [[Outlook NK2 Cache Rebuild]]
* [[Calendar and Contacts Migration]]
* [[Password Migration]]
* [[Email Rules Migration]]
* [[Aliases file Migration]]
* [[Migrating_from_Postfix_and_MySQL_with_bash|Postfix+MySQL aliases and accounts migration]]
* [[Migrating_from_Dovecot_passwd_with_bash|Migrating from Dovecot passwd]]
* [[Zimbra to Zimbra Server Migration]]
* [[Prevent duplicates messages for POP3 users post migration]]


Lots of different versions of outlook exist, and upgrading a whole company to the same version
Please see [http://wiki.zimbra.com/index.php?title=User_Migration_Troubleshooting User Migration Troubleshooting] if you are having problems migrating data to your Zimbra installation.
may cost some money, so consiqently people do not upgrade.


Microsoft have not really gone the whole way to make Outlook work smoothly with IMAP, some have
[[Category:Migration]]
argued that they have deliberately done this.  Microsofts incentive is to make users move to Exchange server.
{{Article_Footer|Zimbra Collaboration Suite 7.0|3/7/2006}}
 
Inconsistancies like, you must have a personal folder when using imap or pop and don,t need one with exchange, leave users wondering why they have two inboxs trash etc. Also the fact that the personal folder always appears first and imap at the bottom, shows that when it come to open standards Microsoft are not your friend.
 
 
== The Good News ==
 
 
1) YOU DONT HAVE TO USE OUTLOOK
 
The Zimbra web client is adeqaute for a large number of users
Thunderbird has good imap support
 
2) IF THE USERS INSIST ON OUTLOOK
 
Existing data contained in personal folders can be saved to a PST file from within outlook
then a utility is provided by Zimbra to move this data to the Zimbra server.
 
You need the ZCS Import Wizard see how to get this below.  This does not always work 100%
and you may need to be selective about what you export from outlook to the PST file before doing the import.
 
Just put this into your browser :-
 
http://your.mailserver.com/zimbra/downloads/index.html
 
and select the  ZCSImportWiz-(version).exe download and run it.
 
3) IF MOVING FROM EXCHANGE
 
Zimbra have provided an excelent utiliy for moving everything from an excahnge server to a Zimbra
server.
 
Just put this into your browser :-
 
http://your.mailserver.com/zimbra/downloads/index.html
 
and select the ZCSMigWiz-(version).exe
 
This is a great program because you can pick the accounts you want it to move, tell it to do it then
go home early.
 
 
== Summary ==
 
The Open Source world and Closed Source world do not always mix.
If all you need from email is simple IMAP-style access, use Open Source Zimbra with the Zimbra webmail interface for calendars/contacts and then additionally Thunderbird for IMAP on the desktop.
 
If your users reallyreallyreally love their Outlook, you should purhchase Zimbra Network Edition. This is especially important if you are moving from Exchange- as users will whine if they loose functionality. Also, the Zimbra devlopers need to eat!

Latest revision as of 03:11, 11 July 2015

User Migration

   KB 1340        Last updated on 2015-07-11  




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First, note that you'll want to create accounts in Zimbra first before you do the migration. If you want to do it in one shot, read Bulk Provisioning.

Migrating your users means you're going to have to deal with mail, calendar, contacts and passwords. This page used to be one monolithic monstrosity -- but has now been broken down into separate pages:

Please see User Migration Troubleshooting if you are having problems migrating data to your Zimbra installation.

Verified Against: Zimbra Collaboration Suite 7.0 Date Created: 3/7/2006
Article ID: https://wiki.zimbra.com/index.php?title=User_Migration Date Modified: 2015-07-11



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