Hello. I am trying to configure a secondary address for staff members. Accepted Domains at the start of this were: someschooldistrict.org (Authoritive) *.somesd.org (external relay) This is the domain that I want to configure as a secondary address for staff. my.somesd.org (external relay). This last domain is student email hosted by a third party. Students are contacts in our Exchange so that they show up in our GAL. These are the configuration changes I made: DNS records configured for the somesd.org domain pointing the MX to our Exchange server: mail. someschooldistrict.org Removed the *.somesd.org from Accepted Domains and created somesd.org as a new Accepted Domain (Authoritive). Created a new E-mail Address Policy using the alias and the somesd.org domain, which correctly added the new email address to staff accounts. Here’s where I run into a problem. I can log into the hosted student web mail system and successfully send a message to my secondary address (me@somesd.org). Attempting to send to that same address from hotmail or yahoo accounts fails. Yahoo is more descriptive: Remote host said: 550 Relay not permitted [RCPT_TO]. What have I missed?

I don't see you have configured @somesd.org as relay domain in exchange. if you want your exchnage relay it to web base server then you need to do it. Please correct me if i understood your ENV correctly.Anil MCC 2011,ITIL V3,MCSA 2003,MCTS 2010, My Blog : http://messagingschool.wordpress.com

I set it as Authoritive because these are to be secondary addresses for our exchange mail users.

Hi Dawgerr, Could you please check the MX record and A record for the somesd.org and the my.somesd.org? If you do have MX and A record for my.somesd.org, why do you set it as a external relay domain, any special purpose. Per your descripton, the configuration seems proper. How about to use the nslook up for the somesd.org from the external internet, confirm you could resolve it successfully. How about to use telnet to the exchange server, and send email to the user@somesd.org , what is result? How about to send email in your local domain, is it successfully? Maybe the public DNS not replicate finally, you could wait for a period time, or reboot your sever to make a test. Regards! Gavin

Hi Gavin, Thanks for the follow up but I fixed it. The configuration was correct but there is a firewall upstream that required the additional domain name be added before it would pass mail through to our Exchange server. Gerry