Chris, I have seen this few times in our setup. Still happens once in a while. Resending the email seems to work. Could never find a reason why. HTH. Regards, Raj Periyasamy MCSE(Messaging), CCNA ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Chris Wall Sent: Wednesday, August 23, 2006 10:45 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] do not have permissions to send to this recipient Okay all, Is there a way to determine why an internal user would receive this message when sending to another internal user? The following recipient(s) could not be reached: John Doe on 8/22/2006 10:12 AM You do not have permission to send to this recipient. For assistance, contact your system administrator. MSEXCH:MSExchangeIS:/DC=com/DC=globalknowledge:NC10S252 There is nothing on the recipients configuration that would reject messages from the sender. Both parties are internal employees and both have exchange accounts on the same server and even the same mailbox store. I am perplexed on this one... Thanks for any info. Chris