You do not have permission to send to this recipient. For assistance, contact your system administrator.#5.7.1 smtp;554 5.7.1 <x@gmail.com>: Relay access denied>.Im using exchange server 2003 and outlook 200 as client.All users cant send mails .Thank you for your suggestions.

Hi,It seems that you have been blocked to send mails to any gmail address.PLease check if the configuration done to block users from sending mails to the internet.Mahendra

Hello,Please follow the below KB.How to troubleshoot mail relay issues in Exchange Server 2003 and in Exchange 2000 Serverhttp://support.microsoft.com/kb/895853/en-usArun Kumar | MCSE - 2K3 + Messaging | ITIL-F V3

You do not have permission to send to this recipient. For assistance, contact your system administrator.#5.7.1 smtp;554 5.7.1 x@gmail.com>: Relay access denied. I'm using exchange server 2003 and outlook 200 as client. All users can't send mails . You most likely don't have a reverse DNS configured (PTR record) for your send connector. Gmail now does a RDNS lookup. This was something they shall have started with 2/13/2009. The easiest way to fix this issue is to configure a Smart Host, typically using your ISP's SMTP gateway.Configuring and Using an SMTP Connector - Exchange 2000/2003http://www.amset.info/exchange/smtp-connector.asp While the link below is about Sendmail on Linux, it provides information that applies to Exchange as well: Need to set up my smarthost to TWCi smtp servers for gmailhttp://www.emailquestions.com/road-runner/851-need-set-up-my-smarthost-twci-smtp-servers-gmail.html MCTS: Messaging | MCSE: S+M | Small Business Specialist

Hi,How about your question now? Any update?Is there same error when you send mails to other outside domain? like Yahoo.com...Frank Wang