Hi Our company with windows server sbs 2003 ,we are sending the mails to our employees who are not having exchange account ,they are not be able to recieve emails from exchange users i.e internal office mails are getting bounced with the following error: the e-mail account does not exist at the organisation this message was sent to.Check the e-mail address,or contact the recipient directly to find out the correct address" We are sure that the mail address of the remote employee of our company is correct.All the mail addresses are created in the third part domain which hosted outside our organisation.We are sure that the mail id exists in the organisation. But why we are getting this error?If we send the mails through exchange to yahoo,hotmail,gmail,etc.......,they are properly going and recieving N.B: Before it was going properly.But after changing the hosting people this type of problem started Please provide a solution Thanks swaminathan

Are you using a POP3 connector to get email? Do those users on external accounts have email addresses in the same domain as the SBS server? If so then the behaviour you are seeing is to be expected. Exchange presumes that it is responsible for all email for a domain. You have to configure Exchange to work slightly differently when accounts are outside of Exchange. http://support.microsoft.com/kb/321721 Or get the users mailboxes on Exchange. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources

Hi Simon thanks for your prompt reply. I am using Mdaemon for recieving MULTIPOP emails and exchange is configured for sending. Users remote are having the email addresses : .....@domain.com where @domain.com is the primary smtp address for inhouse users( active directory users) in exchange recipient policy . Users remote are not logging into our domain.They are not active directory or domain members.But they have the mail addresses in @domain.com. Moreover our local domain name for our company is xyz.com .In our domain xyz.com, we have only one domain controller sbs 2003 with exchange . Please give a solution Thanks Swaminathan

NDR : 5.1.1 "The e-mail account does not exist at the organisation this message was sent to.Check the e-mail address, or contact the recipient directly to find out the correct address" I am getting this report in my outlook And moreover when I send a mail to the same mail id with any webmail it is going Please figure out the issue and help me Thanks S.Swaminathan

Hi, If I understand it right your problem is sending mails to internal users who are located outside of the office. It sounds as though your Exchange server is accepting e-mails on behalf of the domain.com and as you write the users are not create or maintained on the Exchange server but on a Mail server outside your organization. The solution for this would be to use another domain for internal mails and only use domain.com at the remote mail server. Two seperate mail organizations can't receive mails for the same domain. /MartinExchange is a passion not just a collaboration software.