You do not have permission to send to this recipient.

Hello, I have a problem effecting all my users - they cannot send mail externally - comes back with an error message of You do not have permission to send to this recipient.  For assistance, contact your system administrator.

Everything was working ok and I havent touch the exchange server for a few doesnt knwo what as happened.  I havent touch the permission on the exchange advanced tab in AD.

mail coming in and routing internally are both fine.

I have restarted the SMTP virtual server on the exchange server.  The xchange server connects to a smart host on site running gfi mail essentials but I dont think that the email is hitting the smart host.  I believe that the mail is getting block on the exchange itself and it is not relaying it to the smart host.

I can surf the web on the exchange server so I dont think that I have a DNS issue.

Please help.
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If these messages are not sitting in your Exchange Queue, can you look at the logs in Exchange and GFI and see what is happening to them?

In the properties of the SMTP VS > Access > Relay Restrictions...check to see if you have "Allow all computer which successfully authenticate..." checked.
sk123456Author Commented:
Thanks found out the issue. someone had put users into the deny these users box on the SMTP connector to GFI.. Thanks

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