I researched this some time back (Opposite requirement - everyone to be able to receive internet email exept for specified individuals). There is no way that I have found do do this in Exch 5.5. (official from MS helpdesk).
Sorry.
Be aware that these tests are not always accurate.
However, in order to properly block relaying, you HAVE to set up the appropriate rules.
If you go to your IMS, go the the Routing tab, and click the Routing Restrictions button.
Tick the 'Hosts and clients with these IP addresses' box, and...
There are several points to note:
1) You must uninstall or disable the Win2000 SMTP service, or you will not be able to run the Exch IMC.
2) You must install Exch SP3 or 4.
3) You must customize the LDAP protocol in Exch to use port 390 or it will conflict with the AD LDAP.
4) Ensure DNS is set...
We have recently upgraded to BE 9.0 and it is great.
There are a few issues you need to look at when doing the install.
1) Make sure that all permissions are set correctly, esp WRT individual mailbox backups.
2) If you are running NAV for MSE, you will need to disable it during the individual...
I have recently researched the exact problem. Are you running Norton antivirus on the client? If so, the problem is that NAV will not release a mail with an attachment to the local (Client) offline folder until it has been opened and scanned. There is no workaround for this that I have found...
I would suggest you check what other functions are running at the same time, esp WRT backups & antivirus activities.
Running a backup at the same time as a defrag could cause serious instability.
Also check if you are running NAV for MSE. Through bitter experience I have discovered that it is...
Server Environment:
Exch 5.5 SP4 running on Win2000 SP3.
NAV for MSE 2.16
ASSP spam filter.
Clients:
Outlook 2K and XP running on Win2K and XP pro.
Server response is generally excellent, except when opening HTML format mail or mail with attachments. Can take up to 40 seconds to open a new...
There is extensive MS documentation on the issue of removing an Exch server from a site. Generally this is easy. The big issues arise when it is either the FIRST server in a site, or the first server in an organisation. Otherwise deletion should be fine.
MS KB articles 152959 and 152960 are...
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