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How to change login format/ template from username@domain.local to just username!?

SpiderPig asked
Last Modified: 2008-10-06
Dear all,
One of my clients is using Windows SBS 2003 with Exchange and AD enabled. Everything works fine except one annoying detail. Each time an IMAP or SMTP authentication is being make a username followed by @domain.local is needed to be used for the authentication to succeed. XP workstations authenticate via username only. It is just email related authentications. Any ideas how to change authentication so that only the username is being used? Is it because I have used .local in the domain instead of .com or something?

Thank you
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Andres PeralesPrinciple Engineer

you can add the UPN to match you email so when they authenticate they could use their email address.
To add user principal name suffixes
Open Active Directory Domains and Trusts.
In the console tree, right-click Active Directory Domains and Trusts, and then click Properties.
On the UPN Suffixes tab, type an alternative user principal name (UPN) suffix for the forest, and then click Add.
Repeat step 3 to add additional alternative UPN suffixes.


I found it, can you give me an idea of a domain suffix for a username only UPN? There are no examples there, so I am not sure exactly what to type.

Thank you.


Forgot to mention right now it is empty. There are no entries.
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So if I want to keep the UPS suffix with the username only w/o anything following the username. I should keep the list empty correct? Cause it is empty now, but when you type username only it does let you in. It only allows username@domain.local

Thanks for the prompt response!
Andres PeralesPrinciple Engineer

if it is empty it will use you current domain.local name, as that is what you named you AD domain.


Hmmm then you still did not answer my question. If I want to keep it null meaning just username as a UPN suffix. What is the null entry I should add to that tab? Is it '@' or '@domain.local' or '%username%'?


Hey, That was a good you sent me. I think I found the problem. The Login name was different than the Exchange alias, which resulted in auth refused unless certain suffix is entered. Once the Login was matched to the Exchange alias. I could use the username only as a login method.

Many thanks for the help.


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