RE: [ActiveDir] LegacyExchangeDN

Wed, 06 Jul 2005 00:58:06 -0700

Title: RE: [ActiveDir] LegacyExchangeDN
 Thanks for the blog pointer - I think I've actually read that before but couldn't find it when I was googling.
 
I know about deleted items (and the "dumpsteralwayson" registry key) and it often helps. Exmerge is not time consuming because it runs as a scheduled task so there's nothing special to do there once it works and if a user says that they've lost something and it can't be quickly recovered from deleted items then they can simply be given a copy of their .pst and find whatever they've lost themselves - I don't have an awful lot of sympathy for some of the chaos users get into!
 
Disc space is an issue - the .pst files total about 65Gb at the moment compared to 25Gb for the mail store - but that much disc doesn't cost a lot so I'm not too worried.
 
I've not used RSGs yet - we started the exmerge when we had Exchange 2000 - and I know I should make sure I can use them. As I understand it, it works by restoring an entire store from which you can then extract a single mailbox (or whatever's needed)? If this is the case then I can see it taking a lot longer to do the restore than just getting a .pst (and it also means it can't just be done by helpdesk people)
 
I think I will go with Joe's idea of cahnging the name to remove the comma but sticking the old version as an X500 address; I'm sure I can cobble up a script to do it!
 
Steve
 
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Al Mulnick
Sent: Tuesday, July 05, 2005 9:48 AM
To: [email protected]
Subject: RE: [ActiveDir] LegacyExchangeDN

This might be helpful for this situation:
 
Background: if you'd like some more information on legacyExDN there's some nice information about it here:
 
http://blogs.technet.com/exchange/archive/2004/03/24/95451.aspx
 
As for this particular issue:
1) You do realize that recovery of messages is handled by the store for this exact reason right?  It's called deleted items retention and you can restore messages for users that fat finger the deletes to prevent going to tape. Using exmerge to do this is wicked expensive in terms of time and man power and storage in most situations.
 
2) Recovery Storage Groups would be a better solution to the problem if deleted items recovery doesn't work for you. Much better storage, but it does require that you put the store in question back.
(you may want this hotfix if you use RSG's) http://support.microsoft.com/?kbid=883419
 
I'm glad to hear some of the members finally show the proper respect for Exchange and the effort and knowledge that go into making it work well ;)
 
Al
 
 
 
 
 

From: [EMAIL PROTECTED] on behalf of joe
Sent: Mon 7/4/2005 4:08 PM
To: [email protected]
Subject: RE: [ActiveDir] LegacyExchangeDN

legacyExchangeDN is what is stored with mail messages and calendar entries
etc. If you change an LEDN of UserX there is a possibility that the people
will not be able to simply respond to an email UserX sent, they would have
to readdress it. Additionally meeting notices sent out by UserX would no
longer be owned by UserX from my understanding.

You could try doing it and moving the ledn into the proxyAddresses as an
x500 address. This should alleviate the mail delivery issues, not sure if it
would help with the calendar stuff.



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Steve Rochford
Sent: Monday, July 04, 2005 11:04 AM
To: [email protected]
Subject: [ActiveDir] LegacyExchangeDN

I'm trying to use Exmerge to backup the Exchange store (this is an extra to
a "proper" store level backup so that we can retrieve odd messages for
people who manage to delete them; I do know that it's not the best way to do
the backup!).

It all works well except for users with a comma in the LegacyExchangeDN
- the mailboxes.txt file created by ExMerge has lines like:

/O=THE COLLEGE OF NORTH WEST LONDON/OU=MAIN/CN=RECIPIENTS/CN=1794
/O=THE COLLEGE OF NORTH WEST LONDON/OU=MAIN/CN=RECIPIENTS/CN=KENT,
VANESSA

The first of these backs up OK; the second doesn't. I'm guessing that it's
because of the comma. I could probably find some way of creating the file so
that there were quotes round the whole line but I'd rather lose the comma.

Is there anything which depends on the value of LegacyExchangeDN which might
fall over if I change the values for some accounts (running Exchange 2003 on
Windows 2003 but these accounts started life on Exchange 5.5/NT4)

Steve
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