I have a user that had a SMTP alias of QC, which i need to remove and change to a DG. I remove the alias from the users account, but when I try to create a DG with that name I get the following error. I have a waited several minutes, refreshed, forced replication everythign I can think of after removing the SMTP alias from the users account, but Exchange still thinks its in use. I have even searched to make sure it's not in use some where else. No AD groups or USERs with the name QC, but still can't create it. Has anyone ever seen this? Error: There are multiple primary SMTP addresses. Please ensure there is only one primary address for each address type.

On Fri, 24 Sep 2010 15:14:39 +0000, NJDave70 wrote: > > >I have a user that had a SMTP alias of QC, which i need to remove and change to a DG. I remove the alias from the users account, but when I try to create a DG with that name I get the following error. I have a waited several minutes, refreshed, forced replication everythign I can think of after removing the SMTP alias from the users account, but Exchange still thinks its in use. I have even searched to make sure it's not in use some where else. No AD groups or USERs with the name QC, but still can't create it. > >Has anyone ever seen this? > >Error: There are multiple primary SMTP addresses. Please ensure there is only one primary address for each address type. The error doesn't say the address is used somewhere else, it says that the object has more than one primary SMTP proxy address. Use LDP.exe or ADSIEDIT and have a look at the proxyAddresses property on the object you're adding the SMTP address to. Do you see more than one address that has an UPPER CASE SMTP as the address type? If you do, change the one that should NOT be the primary address so it uses _lower case_ smtp as the address type. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Hi, As Rich said, the error happens if the object has more than one primary SMTP proxy address. In exchange management Console, the primary address is displayed in bold font. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT

Hi, Hi, As Rich said, the error happens if the object has more than one primary SMTP proxy address. In exchange management Console, the primary address is displayed in bold font. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT