1500 Active Directory Users lost.....Mailboxes intact

I have been working with Exchange Servers for 8 years. Currently I was
deleting a user (note: have all permissions as administrator). Upon doing so
selected ONE user, deleted it as I always have in the past. I am positive
nothing else was highlighted. I then noticed all users were gone 1500 of
them, but all mailboxes were still there. Is there any other scenarios that
could have caused this other than the actual user folder being selected and
deleted. I AM POSITIVE THIS DIDN'T OCCUR.

Another situation happened just the day before, and I was wondering if this
could have had any bearing on what happened with the users. Barracuda Spam
filtering was put on the exchange server not the proper way. In fact, we
currently have Pure Message Spam filtering on the exchange server and this
person never turned pure message off. Soooooooooooooo, two filtering systems
were on without the proper config. to allow it, thus the exchange server went
down. Immediately barracuda was disconnected (note: the IP number of the
server was put on barracuda). The server was rebooted and it seemed people
were getting email.

But, I was the next person in to actually work on the Active Directory.
Could two spam filters not properly installed cause pure message to grab all
of the users and no matter what the first person did on active directory
could delete all of the users?

One last question....Backup is a month old....Seeing I have all of the
Mailboxes can I restore the users?

Please HELP!!!!!!!!!!!!!!!!!!!!!!!! EVERYONE!!!!!!!!!!!!!!!!!

I need to know:
1. Steps on how all users could be deleted
2. Could two Spam Filtering cause an extreme crisis to Exchange when not
installed properly.
3. How to restore users in Active Directory seeing I have the mailboxes...
Don't want to use old backup.

I THANK YOU ALL HELP


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Relevant Pages

  • Re: 1500 Active Directory Users lost.....Mailboxes intact
    ... Any mailbox changes in that period will be lost, so if mailboxes got moved etc, Exchange would get confused because AD would say one thing and Exchange would have something else. ... we currently have Pure Message Spam filtering on the exchange server and this person never turned pure message off. ... I was the next person in to actually work on the Active Directory. ...
    (microsoft.public.exchange2000.active.directory.integration)
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    ... If I am articulating this correctly, I think Mike D wants to export these ... > Dont you have anti-virus or firewall or at least spam filtering in your ... > afford to buy exchange server. ... >> these type of attachments a day. ...
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    ... I, too, have found Eovlution's spam filtering to be hit-and-miss. ... find setting up a few rules to catch common spam tactics to be just as ... send mail through Exchange server - which sylpheed couldn't talk to. ... Does Sylpheed-Claws now support sending / receiving mail through ...
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