I am currently administering and EXCH 2003 server in a AD domain at 2000 functional level. I am familiar with non-MS mail systems and when you create mailbox (a user) you can then add aliases which are additional address that point to the one user. I found it very frustrating that MS chose to ignore the entire world of existing SMTP servers and traditional mail systems when co-opting their terminology. I digress. I have created a user in my exch environment and want to create an additional address that points to that users mailbox. so I did as directed and created an additional smtp address under email addresses on the users AD profile. However, the exchange server is not accepting mail for that address. it rejects saying: " The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address " The user has an exchange mailbox with'an alias' so they have their primary email addy, and the second smtp addy but the second doesn't work... PLEASE HELP....

Jay, First, I'm assuming that the domain name that you are using is the same for both alias, such as the user's primary address is Jay@yourdomain.com but the additional SMTP address you created is JayDude@yourdomain.com. Otherwise, you would probably not be getting a "bounce back", but I wanted to make sure. Second, does your inbound SMTP mail go directly in to your Exchange server? Or does it go through some type of 3rd party anti-spam system or a hosted provider? I was theorizing that possibly your hosting provider has a copy of your acceptable SMTP addresses (or performs an LDAP query to verify that the addresses are correct. Jim

Yes the domain portion of the name is the same, and our mail goes directly to the exchange server. infact the mail that was bounced was from an internal user to the 'traditional alias'/alternate address of another internal user. Meaning both are users in the same exchange org, same domain, same server. J

Hummm... this sounds like some sort of latency where one of your domain controllers is not seeing what everyone else is seeing. What happens if you go on to Exchange and regenerate the offline address book and then download it to Outlook. Then, open up the Global Address List and find the specific user, look at his/her properties and the e-mail addresses tab. Does the address in question show up?

Hi, First please try to set this proxy address as primary address. After that please ensure that Automatically update e-mail address based on recipient policy has been ticked when you add additional e-mail address. Please find Recipient - Recipient Update Services from Exchange System Manager, and then right click it to Update Now. Besides, when user send email to this account, please type the whole proxy address like JayDude@yourdomain.com,do not just use the prefix of the address. Removing duplicate and unwanted proxy addresses in Exchange http://support.microsoft.com/kb/318774/en-us Hope it helps. Xiu

Xiu, Will make a difference that "Automatically Update E-mail Address Based On Recipient Policy" checkbox make any difference if the e-mail address is already on the user's E-mail Addresses" properties. Exchange really should not care which address is the primary and which are additional proxy addresses. Jim