I have run into a problem which I just dont seem to find an answer to. Our exchange server can receive email but for some reason we are unable to send emails. Every email we send mail to an external domain the email is bounced immediately with the following error message:
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <mydomain.co.uk #5.5.0 smtp;550 relay not permitted>
I have tried everything I can find to correct this but am unable to find any answers. Can someone help me figure out what is going wrong. I have run ExBPA and it finds not errors. I have run the Internet and Email Config Wizard, again successfully. Which leads me to believe that what ever is causing my problems is either something very obvious or deep down in the configuration which I am not familar with. I am running SBS 2003 r2 + Sp2.
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