hi, i was wondering if it is possible for exchange server to discard e-mail sent from a user during say 5 pm to 8 pm?Moon

Which version of Exchange do you use? ~ In Exchange 2007 you can use Transport Rules to block send/receive mails from a user. ~ To block it for certain times you can schedule two scripts, one is to enable transport rule created in earlier step at 5pm and disable transport rule at 8pm. How To: Schedule PowerShell Script for an Exchange Task http://exchangeshare.wordpress.com/2008/12/08/how-to-schedule-powershell-script-for-an-exchange-task/Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com

my fault it is exchange server 2007Moon

Then you can go for the workaround I mentioned above...Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com

ok, will do. Thank you :)Moon